Arizona doesn't have a specific auto-renewal law, but the CFA (no specific auto-renewal law) (Ariz. Rev. Stat. § 44-1521) plus federal FTC rules protect your right to cancel.
Ariz. Rev. Stat. § 44-1521
Penalties: Actual damages plus up to $10,000 per violation
SubScrub automatically cites Ariz. Rev. Stat. § 44-1521 and federal laws