The pet shop is a small local one; it has frequent customers but isn't what I'd call busy or bustling. They keep their snakes off to the side in a wood-looking display rack with sliding glass panes for when the snakes need to be accessed; she had hides and wasn't overly exposed. For that particular instance though, just last week they DID move her and some of the older-residing BPs to a smaller glass display thing near the front desk- can't remember if they were making room or doing something wit that display system; either way. But yeah she wasn't what I would consider to be extremely exposed until recently. I will have her in a small, shadowed tub with hides in it though.

I'll go by what you suggested and see if that doesn't remedy her behavior- fingers crossed.