Parking is just bad at all of them. It's like any major event. I just sit back and relax for an hour or two afterwards rather than trying to fight the crowds getting out. Sometimes you even get a bonus with aircraft leaving the show. This past show I was at we got to see the C-17 taxi right over us (the wing was literally over our heads) and then take off and make a couple of passes. Probably 98% of the people missed it.