25-year-old Clifford ‘Cliff’ O’Brien was booked into the Metro Jail just before daylight Sunday morning, charged with DUI. Police were called to the CSX train yard just after 4 a.m. as security had stopped a vehicle they observed driving on the dozens of train tracks at the location. The driver, who lives in Clarksville, told officers he had left a bar in downtown Nashville and his GPS took him to the South Nashville train yard, and onto the tracks, and he didn’t know how to get out. When asked to do a one-legged stand, the soldier instead marched forward while holding each foot in the air for three seconds. He eventually blew a 0.204 BAC on the breathalyzer. He is free on pre-trial release.