Jesus, that poor thing. I've never seen a snake like that. Definitely contact ASPCA, offer to take the snake too while you're at it- if you can, or can find a new home for it :/ Even if something is individually owned and franchised they still answer to a corporate office. I worked for Anytime Fitness, which is a franchise and individually owned- however, they all have to meet corporate standards and answer to them.
If nothing else, contact the owner, forget the manager.