Originally Posted by
chinafish
I have already checked in online so I have a mobile boarding pass. I still need to get my suitcase, should I then pop to admirals before leaving security regardless?
I'd say if there's no hope of retrieving your bag before the cutoff, you might as well drop by the AC. There'll almost certainly be no line for an agent and they tend to be better-informed (and less harried) than the main terminal check-in agents.