I'd actually remove the water bowl. With PAM you really don't want it near anything your snake can ingest unless it's completely 110% dry, so if the bowl was filled with water and/or sprayed with PAM, give it a thorough wash and don't put it back in the tub until it's been 48 hours since you've used PAM.
I could have the more paranoid opinion here, but it doesnt hurt to be extra careful just in case ^^