I would start with a report to local animal control, though unfortunately most are woefully inadequate when evaluating reptiles and their husbandry.
If you can stomach it, go back, take lots of pictures, upload them to their own directory in a picture-hosting site like photobucket, and throw a link to that directory along with a negative review on all their youtube videos. I would also leave bad reviews on yelp, manta, merchantcircle, google, yahoo, etc.