B. M. Bower 
Lookout Man 

Jack Corey is a spoiled, rich 22 year old who spends his time skylarking with friends and drinking. On the way home from the beach late one night, those friends create all kinds of havoc as Jack struggles to keep his drunken eyes on the road. The hilarity gets out of hand after the friends decide to play Bandit. They end up shooting a man in another car! Not on purpose, but they did shoot him and everyone panicked, urging Jack to drive away in a hurry. Which, to his eventual shame, he did. By the time he got home, he was sober and worried about what to do. Should he tell his mother? Nah, she wouldn’t care, as long as there was no damage to her car (at least so he tells himself). Should he go to the police and confess? No!! The injured man was bleeding badly when Jack drove away, he might be dead and then Jack would have to go to prison. So what to do? (Goodreads)