Again I dont have a problem with the wristbands, but some people may decline it, and a safe zone would be protected by who? Should be proffesional off duty law enforcement or security. Not a vendor who is trying to work. The rest of what had been said I really feel is infringement on someone's basic rights. If you have done your time and have done things right and are legally allowed to be somewhere and not considered ar risk(you said yourself they were a level 2) by banning or eliminating them from the venue is a legal issue.