good question. He stopped, stumbled out of his car, said he would get back in his car to get his license and insurance card, he stumbled, then fell into his car. Throw it in reverse, then drive, and hit another car leaving the scene. 3 witnesses called 911.
But, as I said, when the cops finally found him, he was sober. so he gets a slap on the wrist for leaving the scene. It's a minor violation. like a parking ticket. And no proof he was wasted.