They've gone way beyond just trying to curb DWIs and are on to full blown abstinence. Several years ago here in Raleigh, NC, a nightclub established a bus service to pickup up and drop off NC State University students. Sounded like a good idea to me because it would keep people from driving, but MADD would have none of it. They pitched a fit saying it would encourage drinking. Besides, BAC is arbitrary BS. BAC effects different people in different ways. Some pass out at .08 while others show little signs of impairment.
Even the founder of MADD has said that the organisation has become far more extreme than she ever intended.