I realize that this is considerably after the fact, but these questions get asked from time to time...

One of things to consider is staying on top of the arrival time, but not parking in the International lot any longer than necessary. If you have someone with you, drop them in the Kiss n Fly lot (at the end of the people mover). Have them get off at T5 and check the arrival board. When the flight arrives, park in the T5 lot and go in and meet your party -- alternately, have your friend call you and you can provide curb service when they come out.

You can also wait in the cell phone lot... I've never had an issue waiting in either lot for extended periods of time.

If you have Internet access on your cell phone, you can also watch the arrival times that way and head in to park when the plane lands.

And with both the A and B sides to watch, having your party meet you at the bar (or even by McDonald's) is always a good idea.