Somewhere past midnight the wind swings southwest and Lake Erie starts handing back everything it soaked up all summer — a band of snow standing over one set of streets while a mile north the stars are out. That is the hour HP Winter Services is awake for. Plowing driveways, clearing walks, putting salt on the icy patch by the back step, then coming around again when the band parks itself and refuses to move. Buffalo measures a storm not in inches but in whether the car got out. The best sound in this work is a garage door going up onto pavement that is already clear.