DWU/DUI is a mandatory suspension around here as well and taken pretty seriously, though you'd be surprised how folks can slide through the legal system. It's not uncommon where I work to see people with 8 DUIs still with their licenses.
As to the guy not getting a ticket in my above post, there were lots of witnesses, but all of them just kept driving on. Things to do, places to be, I imagine. But it's happened to me since them and with witnesses. The last accident I was in, and my car totaled, I was rear-ended near a busy intersection. My car was sent spinning up a small hill and finally crashed into a fence surrounding the play area at a McDonalds. I was pinned in, and a lot of people came to help. Not only was it obvious what had happend (the rear of my car had been pushed into the front seat and the guy's car had no front end anymore), all witnesses reported what they had seen. Still, he got no ticket because the officer said he hadn't witnessed it. Fortunately, he wrote out the police report accurately, so it wasn't really an issue when the insurance companies and lawyers got involved.