CONCERT QUESTION!! PLEASE HELP A.S.A.P.!?

Okay, so I got tickets to go the Marianas Trench concert next weekend in Vancouver. I am so excited! But, it says no cameras or video cameras allowed. :( It's at the Orpheum Theatre, if that makes a difference. Just, do most people take cameras anyways? I can't really hide it in my shoe, do they have the right to look through my bag? Thanks! :)