Devil's advocate's devil's advocate here, but if they were properly dressed for a 30 minute line and not for a 5 hour line, that really is the venue's problem. It's not like these places have lockers and changing rooms for people to change from 5 layers of bundled up to fun in the club outfits. I just googled this show and it says the first act starts at 10 pm, so you'd expect doors to open between 8 PM and 9 PM, not 12 AM.