What a horrible person to do that. Hope you are alright now. I would still report it as failing to stop at the scene of an accident. Also, Tesco might be able to help with CCTV footage. I hope the law of Karma comes to them..
This guy is an absolute idiot, I see him regularly speeding in 20 and 30 limits and generally just driving like a complete moron, today I saw him in the right lane of a dual carriageway at the last second he cut across another car to take a left turn at excessive speed the car had to slam on his brakes to avoid hitting him when he slammed on to make the turn.
White audi driving exactly how a white audi stereotypically drives, unsafe, obnoxious and reckless. Drives aggressively without a care or consideration for others, pedestrians and road users alike.
There is nothing shown here to substantiate your claim. I personally feel there might be more to this story than you are letting on.