As an American my best advice to you (which I naturally offer unsolicited) is to do your best to ensure that he always, always feels out of place and like he is taking up too much space. Never let him feel entitled to take up that much space, in the streets or whatever. Do not let that shit take root. If you want, maybe try to subtly enlist other neighbors in this effort by bringing up how large and awkward it is.

Never let that become normal.

It’s like in “A Fish Called Wanda” when the American character drives all over England in this gigantic Cadillac. It’s hilariously out of place and further serves to illustrate the character and how clueless he is about Europe.

Slash his tires every so often.

Don’t they get fined for parking outside the designated spots? You can’t legally park an eighteen-wheeler wherever you want and I assume the same should apply for oversized trucks.