Ariz. Rev. Stat. § 28-3512
A. An immobilizing or impounding agency shall release a vehicle before the end of the immobilization or impoundment period as follows:
4. To the registered owner, if all of the following apply:
B. A vehicle shall not be released pursuant to subsection A of this section except pursuant to an immobilization or a poststorage hearing under section 28-3514 or if all of the following are presented to the immobilizing or impounding agency:
D. Before the end of the immobilization or impoundment period, the immobilizing or impounding agency shall release a vehicle to a person, other than the owner, identified on the department's record as having an interest in the vehicle immediately before the immobilization or impoundment if all of the following conditions are met:
1. The person is either of the following:
E. Before a person described in subsection D of this section releases the vehicle to the owner who was operating the vehicle at the time of removal and immobilization or impoundment, the person described in subsection D of this section shall require the owner to present and shall retain for a period of at least three years from the date of releasing the vehicle a copy of all of the following:
G. A vehicle shall not be released after the end of the immobilization or impoundment period unless the owner or owner's agent presents all of the following to the impounding or immobilizing agency: