While this might seem like an extreme approach to take, we're reliably informed that what we see here is the culmination of a long feud. As we can see from the positioning of the car, and the positioning of the railings, this is a narrow sidewalk along the side of a busy road. If you park on that sidewalk, pedestrians have no option but to walk into the middle of the road to get around your car. That's not fair, and it's not safe either.
We're told that the driver of this vehicle was a repeat offender, and had been asked several times to stop doing this. As they seemingly didn't care what anyone else thought of their selfishness, someone decided to act with not one, not two, but three tins of paint, thrown up the front, side, and back of the car. It's a strong, tricolor look. You might even be able to style it out, and pass it off as art! You'd need to spend time and money getting the paint off the windows and windshield first, though.