I spoke with Pepsi Center today, guest relations. This is their GA protocol as follows: lineup begins at 5 am, no wrist bands, must stay on site all day, will get wrist bands prior to entering floor, no use of onsite facilities ie bathroom, can leave the line if people in line ahead or behind are ok with that. Parking lot opens at 5 am. I informed them the way LA and Phoenix handled the GA which they both did a good job with wrist bands and able to leave the venue. I don't know what San Jose or Vancouver did since didn't attend shows there.
For those who read this doing GA, please call