Had a friend that did this 10 years ago. At that time she was a college educated professional, about 29 years old, working for a non-profit charity. They had an evening event and she got way too drunk. She got in the car and tried to drive home. She has no memory of this but she did hit another car (thank God no one was killed) and left the scene. I got a call from her husband at 2 am and one from her in jail at 3am. She was caught and arrested and after 6 months of near nervous breakdown on her part, went to trial, and was convicted to one month in the downtown twin towers in Los Angeles. She was realeased after two weeks for 'good behavior'.
Did she deserve this punishment? Absolutely. But it cost her all her savings and nearly cost her her marriage. She was court ordered to live in a halfway house for 6 months after for recovering alcoholics. Her lawyer advised her to say she was an alcoholic at trial bc they tend to be more lenient if you have a 'disease'. Bunch of crap. This girl is just like any one of us who made a series of very very very bad decisions beginning with drinking too much at a work event.
Long story here but I hope it might serve as a deterrant for anyone out there who might want to drink and drive. If you are lucky enough to not hurt anyone else, you could still hurt yourself.