This is really a long shot, but you might want to pass the photos along to the police/state troopers in the area. You never know what they might turn up if they wanted to try.
Also, in VT, if there is a "hit and run" and the other driver gets away, the law says we do not have to pay the deductible when our insurance has to pay for the repair. I carry $1000 deductible, so it mattered to me when I was able to use that law here when someone hit me in parking garage and damaged the front. Good luck.