Enclosed is the AZ state law that states that your auto proof of insurance on you have on your cell phone is legal proof of insurance.
Arizona State Law ARS 28-4135B
ARS 28-4135B. A person operating a motor vehicle on a highway in this state shall have evidence within the motor vehicle of current financial responsibility applicable to the motor vehicle. The evidence may be displayed on a wireless communication device that is in the motor vehicle. If a person displays the evidence on a wireless communication device pursuant to this subsection, the person is not consenting for law enforcement to access other contents of the wireless communication device.
