East Lampeter Township Police say 22-year-old Elmer Stoltzfoos Fisher, of Paradise, was slumped over and asleep in a slow-moving buggy on Sunday night.
An off-duty officer from nearby Quarryville reported seeing the horse pulling the buggy at a walking pace as it straddled the center line.
Police say a breathalyzer test snowed Fisher's blood-alcohol content was 0.18, more than twice the 0.08 legal limit for drivers.
