This is a real puzzle to me.
If you own the land outside your house and someone parks in it I can understand getting hacked off about it. If you don’t, then how on earth do you justify this behaviour?
Aye it puzzles me too, there are loads of these arseholes in the streets round my office that leave cones all over the place. I just move the cones, they almost certainly know they are in the wrong.
I had one woman come out and ask what I was doing when I was moving the cones.
“Can I ask what you’re doing” she said.
“Moving these cones so I can park”
“You can’t just park in front of our premises” (yes she used the word premises)
“Why?”
long pause
“Oh, just park where you like then”
“Thanks I will!”
I would never block someones drive but coning off “your space” just advertises to the world that you’re an arsehole