Arrested a 10-15, and his friend in the red p1 starts car ramming His friend driving the red p1 leaves after is finally taken down The 10-15 leaves after I take him out of the car

I was driving like a normal person, 0 stars clear on the gda everything about me is clean. I leave the bank after putting in some money and get ready to leave and some cop just drives into me for no reason and gets out and starts shooting me with a shotgun without even explaining whats going on...