I appreciate some of the car parks are a nightmare going home and if sitting in traffic is what people don't like then ironically the opposite of leaving early is the way to go, we usually go in one of the pubs near the ground after the match, have a pint for half an hour and fly home on empty roads, I know that everybody won't be able to do that but you get my point.
Also, after watching players like zabba literally spilling blood for the team, getting home in time for some shit Saturday night TV doesn't seem as important to me as appreciating his efforts by clapping him and the rest of the team off at the end of the match.