Maine doesn't have a specific auto-renewal law, but the UTPA (no specific auto-renewal law) (Me. Rev. Stat. tit. 5, § 207) plus federal FTC rules protect your right to cancel.
Me. Rev. Stat. tit. 5, § 207
Penalties: Actual damages plus civil penalties
SubScrub automatically cites Me. Rev. Stat. tit. 5, § 207 and federal laws