Louisiana doesn't have a specific auto-renewal law, but the UTPL (no specific auto-renewal law) (La. Rev. Stat. § 51:1401) plus federal FTC rules protect your right to cancel.
La. Rev. Stat. § 51:1401
Penalties: Treble damages plus attorney fees
SubScrub automatically cites La. Rev. Stat. § 51:1401 and federal laws