Wyoming doesn't have a specific auto-renewal law, but the CPA (no specific auto-renewal law) (Wyo. Stat. § 40-12-105) plus federal FTC rules protect your right to cancel.
Wyo. Stat. § 40-12-105
Penalties: Actual damages plus civil penalties
SubScrub automatically cites Wyo. Stat. § 40-12-105 and federal laws