If that was my corsa and I had to pick the kids up, i'd of either put his window through if it was a manual or walked all over his car to get into mine, what an inconsiderate selfish piece of *****, unfortunately this is the mentality of today's people, I bet if you pulled him up on it he would of just made out like he didn't realise.
I hate parking my car in multi stories, and I usually have to go the furthest possible place that all the lazy people can't be ***** to park in, I certainly don't block people in just so I don't get a ding.