At three in the morning Newbury Street runs empty and white, and about the only thing moving in Peabody is a plow with its lights on. All-Pro Landscaping works that hour on purpose — driveways, walkways and the lots along the Route 1 corridor opened before the first commuter turns a key. Salt goes down where the cold is going to find water. By the time the sky grays over the North Shore the pavement is dark again and the day can start on time. Nobody watches the storm get beaten; they just find a clear drive and go.