Something similar happened to me when I wasn't moving and some stupid ass truck driver ripped up the side of my bumper. I told my friend to get the fuck out of here, he was rolling a blunt right when it happened, so he darts away and I exchanged information with the driver, and simply let it go, I was in a rush to do other things. I end up being screwed by the insurance company because the guy said I hit him! His truck had no damage, and I had a ripped bumper. I ended up in a dispute over a year to get it ruled the other way around.

At least you have a phone number. Time to do some research. Good luck!