Ariz. Rev. Stat. § 28-4847
A. A towing company shall release a towed vehicle to the owner or a person designated in writing by an insurance company during normal business hours on the day the request for release is provided to the towing company, the detailed statement of charges is provided by the towing company at no cost and payment for any reasonable towing, storage and related fees is received by the towing company. Beginning January 1, 2019, owners, insurance companies, towing companies and other persons requesting the release of a vehicle from a storage lot pursuant to this section shall use the standard form prescribed by the department pursuant to this section and shall present proof of ownership pursuant to section 28-4842, subsection E. The request for release shall be in writing and:
E. A person in this state may choose any vehicle repair facility for the repair of a motor vehicle. A person in this state may choose any towing company or operator of a towing vehicle to transport a motor vehicle from a towing company's storage lot to a vehicle repair facility. At the same time a towing company or operator of a towing vehicle provides information about a vehicle repair facility, the company or operator shall inform the person of both of the following:
G. A towing company may not:
1. For a primary tow, charge an owner or insurance company any amount in excess of an amount that is authorized pursuant to the contract or this section. For purposes of this paragraph, "primary tow":
H. A vehicle repair facility or any employee of a vehicle repair facility shall not pay or agree to pay, and a towing company or any employee of a towing company shall not accept or agree to accept, any monies, fees, commissions, credits, gifts, gratuities, things of value or other compensation that is provided directly or indirectly for the purpose of inducing the towing company or any employee of a towing company to do any of the following:
N. A towing company shall implement the following business and billing practices:
O. For tows that result from a motor vehicle accident:
P. On or before December 31, 2018, the department shall develop and prescribe the following forms to be used by owners, insurance companies and others:
S. For the purposes of this section: