Please Park Somewhere Else
At first glance, it may seem like the OP is the one at fault here. If you park outside someone else’s house, we suppose they have a right to ask you to move, especially if you’ve blocked them. Here’s the catch though. This note was left on the OP’s car by their neighbor meaning they actually live there too.
In case you were wondering, no they didn’t block their driveway either. Apparently, they parked on the street where they very well have a right to leave their car. So, in conclusion, their neighbors just left a not-so-polite note for no reason whatsoever. That’s just wonderful!