Out where Wakefield runs up against the highway, the office lots go silent at night and fill again by seven. CommTank, Inc. plows that stretch of town: commercial lots opened end to end, entrances squared off, fire lanes and walkways cleared before the first headlights swing in off the ramp. A nor'easter does not pause for the workday, so the passes keep coming through the storm instead of waiting politely for the end of it. The crown of the pavement gets treated where the afternoon melt runs and refreezes into a sheet. The measure of a good night out here is a parking lot nobody thinks twice about.