I think maybe we saw the same TV segment. Dateline or some similar show. They had some "expert" tell the viewers how to get out. Maybe I'm getting the order mixed up, but I recall that the first action to take wasn't to roll down the windows or bust them out with the center punch. I think the first action suggested was to unbuckle your seat belt because once the water starts rushing in, people panic, forget that they have their seat belt on, and drown because they get tangled and trapped.
I remember hearing a long time ago that the Dutch often drive with their seatbelts off when driving on the levees for this very reason. Perhaps some of our Dutch members can correct me if I'm wrong about that. Not that I would necessarily recommend it. If you're knocked unconcious or seriously injured before you even hit the water, you're in even more serious trouble than if you were wearing your belt in the first place.
Matt, nice photos. <img src="/images/graemlins/smile.gif" alt="" />