<human>: Condense the text into a few key points

Hello all, I'm hoping to get some advice and maybe promote some discussion regarding my problem I'm in at work and see if anyone has any ideas on what I could do in this situation.

I recently started working at a new restaurant in the city I'm living in and have really enjoyed working here so far. It's owned by a nice family, the owner originally built the restaurant over 20 years ago and his 4 sons (all late 20's early 30's) all work in different jobs within. It's a friendly environment and everyone I work with is great.

A very common thing for staff and friends of the owners family to do is to drink and socialize in the restaurant after they have finished their shifts. This is nice, it creates a great opportunity to get to know everyone and I've made friends with the staff and family very quickly because of this.

The problem I have is that after the owner has finished drinking excessively throughout the day (it's pretty much accepted he's an alcoholic) he will say goodbye to everyone and drive home. 

I only work evening shifts, so normally am working when he's leaving. It makes me so uncomfortable to know how much he's drunk and see him leaving with his car keys in his hand.

I just don't know what I could say to him or his sons. They know about it, and they seem to have accepted that it's what he does. To be honest, I don't care much about his own safety; it's the lives of others he's putting in danger each night that bothers me

Does anyone have any similar situations they were in? What, if anything could I do? Is it really excusable to wash my hands and say "it's not my place"? I don't want to quit as I really enjoy working there, and also wouldn't want to jeopardize my job in any way
<bot>: What can I do about the owner of the restaurant driving home drunk each night? His sons let it slide and I'm just an employee