I land at 9.30 AM and take off again at 12.45 PM (on United; Terminal 3, I believe). I've never let an airport for Chow, but I'm really hankering for In-N-Out. I understand there's one just off the Millbrae station. Plenty of time to get there before they open at 10.30, but as I've said, I've never let during a lay over. Can I get a separate boarding pass and jump straight to security? Do I have to wait in the ticketing line again? You can tell that I'm a simpleton who doesn't travel much.