Agree with everything W126Pilot says.
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W126Pilot: Isnt there still that Flamingo restaurant on the 1st floor of the T2 (with access from outside the airport) where you can kill time? I haven't been in there in quite a few years, but remember killing time there before when waiting for passengers to arrive. If so he could spend some time there if they wont allow him to check in more than 3 hours early.