That works great if there's enough parking to facilitate everyone. I know from experience of living in a place with shit-ass parking such that I regularly had to park 5 buildings away, that it just isn't that easy sometimes. Perhaps these fuckheads who took your space have the same experience as I. I'm sure my mentality no matter where I lived at this point (at least for a good while) would be just take whatever is available, due to having lived in my previous complex for 7 years, and having that drilled into me.