Maybe not, maybe so.
But those soldiers circling the arena in pairs with M-16s drawn (and not the kind plugged with those orange tips) were real, so someone was taking is seriously. We also had to go through airport-style metal detectors -- didn't have to take off belts and shoes, but all stuff in pockets had to come out. It set off on one guy and he had something in his pocket but they still took him to the side and frisked him top to bottom and wanded him all over before letting him go in.