lol cyntax!
However, I do agree. You never know which chemicals animals will be sensitive to, and so caution is your best policy. I would not spray any chemicals in a room containing animals. I would recommend you cease using sprays in your snake room (not just near the terarrium, but anywhere in the room). If Norbert is still alive now then you probably got away with it this time, but don't take further risks.
Skye