HAMPTON, Ga. (AP) — His racing suit unzipped down to his waist, Tony Stewart walked glumly out of Atlanta Motor Speedway with two issues still hanging over him. He doesn't know if he'll face criminal charges for his car striking and killing another driver. He's yet to claim a spot in the Chase for the Sprint Cup championship. At least he was back on the track. Stewart's return to racing was cut short Sunday night when his familiar No.