I'm usually pro-police; BUT...
Similar thing happened to me when a "recovering" druggie rammed my girlfriend's car, in front of my house (20MPH zone), pushing it onto the green verge and totalling both cars;
so the locals handcuffed me because I drove up, parked, and asked what the hell happened.
Did I mention that they unloaded all the swag from the guy's car, onto my lawn, and gave him a ride home because he was obviously 'tired'?
Only intervention by a retired cop/neighbor got me out of the patrol car (and got the crap picked up from my lawn).
We were both just thrilled afterward when the local engineering cult proclaimed that the crush-zone had worked on her new lexus.