Oh sweetheart ((((((big hug)))))
I sort of had this but in a more 'oh, didn't think you'd mind' kind of way with my neighbour when I first moved here, as parking can get a bit crowded on the road.
A few episodes of me knocking on his door non stop when he was on nights, until he got up and moved it soon sorted it.
Apart from what pp's have suggested re cameras, i don't know what else to suggest.