Instead of sitting in the cell phone lot, I decided to try the Airport Overlook. It was pitch black dark outside and there were a lot of planes landing and taking off when I pulled up. I've been here during the day with the kids and they really enjoyed it.
There were a few cars parked up front but even more in the back. Not sure what was going on but probably some kids playing the horizontal hula if you know what I mean. It seemed a little sketchy at night, so I didn't hang out long.
Got to watch a few planes land and one thing I'll say is that if you want to see a lot of airport action you really have to hit it at the right time. I'd go back, but probably just in the daytime.