Fender Bender in the parking lot

So a couple weeks ago my friends car as parked in j-2 and was extremely close to one of the lines in the spot we thought no big deal we should be fine. We were wrong someone side swiped the side of his car and put multiple dents and very long scratch marks in it.I think the school should get cameras to help catch the people that just run into peoples car and then drive off like it never happen something needs to be done.