Hey there. After reviewing the evidence and discussing it. While it could be argued that you may have lagged, on the provided clip. You pass the cop car, clipping it. Then turn around, scrape a wall and go full speed into the car next to the cop. You could not provide your own POV to verify any sort of lag, which makes your defense difficult and it could be argued you, you were doing this for nefarious reasons.
While cops shouldn't go straight to executing, you hit the person, at full speed, backed up at as fast as you can and you had just used your car as a weapon against another officer-ie; realistic threat, realistic initiation against an officer. If you had stayed in the car, not moved after. The PK would have likely been reversed. ( as cookies also stated. ) But, given the nature, I must deny this.