Every Southfield storm ends in the same insult: the city plow rumbles past and leaves a ridge across the mouth of the driveway, knee-high and set like poured concrete. Driveway Plow Service LLC exists for that ridge — plowing drives down to the pavement, cutting the apron back, opening the walk to the door and the path to the mailbox, salting the shaded stretch so it doesn't turn to glass by evening. On the ranch-house streets north of the freeway a driveway is the entire commute until you reach the road. Getting out on time on a February morning is a small thing that makes a whole day work.