It seems like most of the staff members don't care about climbing to uncommon spots by using security cameras but I have been yelled at by @Samuel for climbing on Puffer Mart by using a security camera. I agree with Samuel tho, it is a bit unrealistic because a security camera isn't made to handle the weight of a person and it would probably break in real life if someone stood on one. I hope that some staff members can clarify whether it's allowed or not.