Ariz. Rev. Stat. § 28-4848
A. A towing company, storage yard, facility or person that has physical possession of a vehicle that was removed pursuant to section 9-499.05, 11-251.04 or 28-872, that was impounded pursuant to chapter 8, article 9 of this title or that was abandoned shall provide access during normal business hours to a person who presents evidence that the person either:
C. A towing company, storage yard, facility or person that has physical possession of a vehicle as prescribed in subsection A of this section shall provide access during normal business hours to an ignition interlock device manufacturer or ignition interlock service provider or lienholder who submits a request for access to a vehicle. The request for access shall be in writing, shall contain the name, address and telephone number of the person making the request for access to the vehicle and either: