[¶ 1] The State of North Dakota appeals from a district court order suppressing evidence. Concluding the district court erred in its application of the law, we reverse.
I
[¶ 2] Belfield police officer Michael Gant and Belfield police chief Eric Ahrens responded to a complaint from an employee of the Super Pumper Station Store in Bel-field, North Dakota. The employee’s complaint alleged a customer in the store’s parking lot was making “fists gestures” at employees. When the officers arrived, they attempted to speak to Neal Matt Haverluk, who was seated in a car in the store’s parking lot. Haverluk responded by cursing at the officers.
[¶ 3] Officer Gant, who was stationed on the passenger side of Haverluk’s vehicle, observed Haverluk place his right hand between the driver’s seat and console. Gant informed Chief Ahrens of Haverluk’s actions; the officers drew their weapons and ordered Haverluk to step out of the car.
[¶ 4] The officers noticed several indications of intoxication and ultimately arrested Haverluk for being in actual physical control (“APC”) of a motor vehicle while under the influence of intoxicating liquor, drugs, or other substances. Shortly after Haverluk was ordered out of the car, Gant entered the car and reached between the driver’s seat and console, where he found a set of keys, one of which was the vehicle’s ignition key. Ahrens advised Haverluk he was under arrest. Haverluk then struck Ahrens in the face.
[¶ 5] After a preliminary hearing, Haver-luk moved to suppress the keys, based on the testimony presented at the preliminary hearing. The State’s untimely response to the motion included an evidentiary hearing request. Without addressing either the State’s request for an evidentiary hearing-on Haverluk’s motion or Haverluk’s motion to quash the State’s answer as having been untimely submitted, the district court granted Haverluk’s motion to suppress, stating:
Under the facts revealed in this record, law enforcement claimed to be searching for weapons, but none were found, and the search occurred after the situation was secured.
The rationale for the exception — the protection of the officers from assault with a weapon hidden in the vehicle and the prevention of destruction of evidence — does not apply once the vehicle or arrestee is removed from the scene of the arrest....
The car keys are inadmissible.
[¶ 6] The State filed a statement with the district court, as required by N.D.C.C. § 29-28-07(5), and appeals, contending the district court erred in suppressing the vehicle ignition keys. The district court had jurisdiction under N.D.C.C. § 27-05-06. This Court has jurisdiction under N.D. Const, art. VI, § 6, and N.D.C.C. § 29-28-07(5).
II
[¶ 7] When reviewing a district court’s ruling on a motion to suppress, we defer to the district court’s findings of fact and resolve conflicts in testimony in favor of affirmance.
City of Grand Forks v. Zejdlik,
*655 A
[¶ 8] The search of vehicles incident to arrest has been reviewed numerous times by this Court.
State v. Wanzek,
[¶ 9] The district court correctly noted that a warrantless search incident to arrest is invalid when it is not contemporaneous in time or in close proximity to the place of the arrest.
State v. Kunkel,
[¶ 10] In
Wanzek,
we held a warrantless search of the passenger compartment of a vehicle is valid even if the arrestee voluntarily exits the vehicle prior to arrest.
[¶ 11] A search is not invalid under the
Belton
exception simply because a person is not occupying the vehicle when the search is conducted.
Wanzek,
B
[¶ 12] Haverluk argues the search was invalid because he was not formally arrested at the time the search took place. This Court has applied the United States Supreme Court’s rationale in
Rawlings v. Kentucky
to searches of a vehicle occurring prior to formal arrest.
[¶ 13] When a search incident to an arrest has been conducted prior to the formal arrest, we “closely examine the facts prior to the search to determine if probable cause to arrest is present without regard to any evidence which might be discovered during the search preceding the arrest.”
Overby,
1
[¶ 14] Haverluk argues the officers could not have had probable cause to search when they lacked the keys because vehicle keys are essential to probable cause and APC could “only be charged from the presence of the keys.”
*656
[¶ 15] The essential elements of APC are: (1) the defendant is in actual physical control of a motor vehicle on a highway or upon public or private areas to which the public has á right of access; and (2) the defendant was under the influence of intoxicating liquor, drugs, or other substances.
See State v. Ulmer,
[¶ 16] We have frequently upheld APC convictions even when the vehicles were inoperable or the operator had no intent to drive.
City of Fargo v. Novotny,
[¶ 17] “The key factor in determining actual physical control is whether the defendant is able to manipulate the vehicle’s controls.”
Novotny,
[¶ 18] “Actual physical control of a vehicle does not solely depend on the location of the ignition key. The location of the key is one factor among others to consider.”
Theusch,
2
[¶ 19] Here, a careful examination of the facts establishes that the officers had probable cause to arrest Haverluk pri- or to the search of the vehicle. The officers responded to a complaint of an unruly customer and found Haverluk seated in his vehicle. Haverluk’s unusual behavior, his slurred speech and bloodshot eyes, the odor of alcoholic beverages emanating from Haverluk and his vehicle, and Haver-luk’s use of his vehicle to steady himself were sufficient to establish probable cause to arrest for APC. Therefore, the officer’s search of Haverluk’s car was valid as a search incident to arrest, and the vehicle key was not essential for the probable cause to arrest.
Ill
[¶ 20] The search in this instance was also valid as an officer-safety measure. The United States Supreme Court has held a law enforcement officer may order a person to exit a vehicle when the person has been lawfully detained, even in situations not amounting to arrest.
Pennsylvania v. Mimms,
[¶ 21]
Mimms
balances the governmental interest in the safety of the officers, the extent of the intrusion, and the nature of the act from which the search stemmed.
New York v. Class,
[¶ 22] A law enforcement officer may conduct a pat-down search of a person when the officer “possesses an ar-ticulable suspicion that an individual is armed and dangerous.”
Michigan v. Long,
[¶ 23] When Haverluk reached between the seat and console, the officers drew their weapons, apparently fearing danger. Officer Gant testified he searched between the seat and console because he didn’t know if Haverluk “was going for something or if he was placing something there.” Gant testified the search was conducted “[f]or our safety.”
[¶24] The district court erred in concluding the “rationale for the exception — the protection of the officers” did not apply. Even out of the vehicle, a suspect may “break away from police control and retrieve a weapon from his automobile.”
Id.
(citing
United States v. Rainone,
IV
[¶ 25] Haverluk argues we should affirm the suppression of evidence because the State’s response to his motion to suppress was not timely filed in the trial court. Haverluk moved to suppress on February 3, 2000. The State did not respond until February 16, 2000. Haverluk argues that under N.D.R.Ct. 3.2(a) and the time computations of N.D.R.Civ.P. 6(e), the State’s untimely response is an admission Haverluk’s motion was meritorious.
[¶ 26] Once a party has filed a motion, “the adverse party shall have 10 days after service of a brief within which to serve and file an answer brief and other supporting papers.” N.D.R.Ct. 3.2(a). “Failure to file a brief by the adverse party may be deemed an admission that, in the opinion of party or counsel, the motion is meritorious. Even if an answer brief is not filed, the moving party must still demonstrate to the court that it is entitled to the relief requested.” N.D.R.Ct. 3.2(b).
[¶ 27] In
City of Grand Forks v. Zejdlik,
But, as we explained in Hartman v. Hartman,466 N.W.2d 155 , 156 (N.D. 1991), “[although a party who fails to respond or make an appearance assumes a substantial risk that the trial court will act favorably on the motion, the moving party has the burden of demonstrating to the trial court’s satisfaction that he is entitled to the relief requested.” Zejd-lik argues that, unlike the movant in Hartman, he presented evidence at the hearing which “showed that [he] was entitled to a favorable decision on the [m]otion.” We disagree.
Id.
at 774;
see also City of Jamestown v. Snellman,
V
[¶ 28] Because the district court erred in its application of the law, we reverse the order of the district court and remand for further proceedings.
