I was actually a pet store santa once during my stretch of time volunteering with a cat adoption out of the local petsmart. As a female around 5 feet tall and not much more than average weight, my friend and I were probably the smallest santas that store had ever seen, but it was a lot of fun to do. We got mostly dogs and a cat or two, but no reptiles at all while I was there. My best advice would be to ask first if they're okay with it before you bring your snake in, since surprises are rarely appreciated.

I have no pictures saved, sadly just a few printed out ones left at my parents house