That is absolute bullshit.
What you wanna do is talk to your other nice neighbours. You wanna reeeeally get on side, befriend them to the point where itās more than just saying hi on the street terms. Get to the stage where youāre going over to theirs for coffees, having them over for dinners, that sort of thing.
Itās also ideal that these neighbours have already had rows with the parking prick, because you havenāt been involved with that, I presume from your post that youāre neutral to everyone. Nice neighbours and parking prick already dislike each other and you havenāt had to do a damn thing, stunning bit of serendipity there.
Anywho, so you befriend these neighbours. And slowly, you get it into their head that what this guy is doing is bang out of order. Chances are they already think this, but you want to sprinkle it a bit more into their brains. Slowly, slowly. Let it stew. Let them think itās them whoās really angry at this. What will then happen is that because theyāve already rowed with this guy, they wonāt be scared to do it again. In fact, theyāre probably looking for an excuse to call him out again. Theyāre gonna sort this for you.
NOW. At the same time as tensions are rising, you make sure to strike up the odd conversation with the parking prick. Say things about the animosity, arenāt the other neighbours unfriendly, etc. Again, you have to be veeeery subtle. But eventually, all the neighbours will think youāre the best neighbour. Everyone will love you, theyāll be like little pawns for you to play with as you wish.
Now, if you really want to fuck with this parking guy you need to go all Pavlovian on him. Make him associate parking there with something awful. I personally would bake some cookies with chocolate laxatives, and time when I get home to be at the same time as this guy. And Iād say āhey man, the old ball and chain made too many cookies! You want one?ā by this point he trusts you so he says sure. A short while later he will be shitting his brains out and have no idea why, but no one suspects cookies, heāll be thinking he had a dodgy bit of chicken or something. Now, make it a running joke that your partner has started making extra cookies for this guy, and hey, by now youāre best friends, he comes over for beers and catchups, heās become part of the family, heās gonna take those cookies. So give him one every time he parks there.