After the meeting, you could tell people who had spots where they could move were on the run to get their cars moved so others could move too. Most cars that are parked blocking someone in will have: A note with a number to call, or Keys left in them, or be left in Neutral so others can push them around a bit to get out. Some how I can't see this working in America. It is like this at a lot of the stores here too. I've seen people pushing another persons car so they can get out themselves. Still when you are packed in this tight all you can do is wait. This picture doesn't do it justice but look at how many cars are going nowhere.
Still it says something about the Korean people. First, they make it work. I guess this comes from having a lot of people with very little space, and second, they must be pretty tolerant and patient. I didn't see any cars get dinged or any fist fights break out. In America I think someone might have got shot.