Sorry to hear
I've had this on a previous car and it was a whole respray job. I knew the guy who id it though, just couldn't prove it so I gave some pay back. Would have loved to/still would love to smack this guy right in the face but that comes with jail time so I instead did the same back to his car (Toyota Celica) plus ripped out all of his tyre valve cores. My car stayed untouched after that but still, I was a lot of money out of pocket however, on the plus side the car never looked fresher right up until the day I sold it, turned out to be a worth while cost.