I want to eat at the Jet Rock Bar & Grill at PHL after some spotting and just sit at the end of the terminal for a while and watch planes, because I've finally convinced a friend of mine (not a plane-freak) to go to the airport when he's not flying anywhere. My question is, am I even allowed past the security checkpoints without being a passenger on an outgoing flight? There's places to eat at the ends of terminals B, C, D, E, and F that I'd go to. I've only flown once so far after 9/11, MHT to BWI, and I can't remember if they checked my ticket at security.
Am I out of my mind to get through without a ticket, or is it allowed?