What do to about people parking illegally?

[FlyWf]

So a bunch of people are consistently parking very, very illegally at the corner of my street. Where they park they block the sightlines entirely. It makes everyone trying to turn out of my street have to laboriously creep out and pull halfway into the lane, which [censored] up the whole traffic flow. Here is an MSPaint:


Undrawn is that at least one of the parked cars is facing the wrong direction for some reason.

Anyway, anyone have any experience with trying to resolve a situation like this? [censored] notes on windshields, keying spree, hand-made NO PARKING!!! sign, call the police(I'd feel ridiculous calling the police about a parking violation)?