Yeah, it's always been the case, as others have mentioned.
The worst time, was when I had a MK3 Ibiza Cupra, it was silver and really looked nice, I was at a Tesco's, parked in the furthest space from the store entrance, only to come out 5 minutes later to find a crap Ford Mondeo parked so close to me, I couldn't actually get in the car through the drivers side! I couldn't believe it, it was as blunt and deliberate as you like, pathetic, literally had to climb in the passenger side to get in my own car!
However, I won't say exactly what I did, but that car did not go unharmed - childish maybe, but at the end of the day that was a real deliberate thing that was done by them, and for nothing, it's not like i'd taken the last space! There were about 50 free spaces around me!