The cops are absolutely insane in this game sometimes. I was pulling up to an off-road/ATV race start, and I hear sirens. I'm just about to start the race and all of a sudden a cop car come FLYING out of nowhere and just plows right into all of the ATVs and riders, killing a few right off the bat, then the rest all aggro on the cop and beat him to death. I'm just standing there watching this all unfold and as soon as they are done with the cop, they all turn on me, and I didn't do a damn thing. So I had to kill like 5 guys, and now the race is gone. Maybe it'll be back after quitting and re-starting, but the race icon was nowhere on the map for the additional couple hours I played after that incident last night.