Christopher Bergerson wasn't wearing a seat belt when his pickup went off a county road west of Mankato, Minn., and he died when he was thrown from the truck. About 10 to 15 feet from his body, State Patrol Sgt. Dave Anderson found a traffic ticket on the ground. It turned out the Thief River Falls man was cited nine days earlier -- for driving without wearing his seat belt. … Bergerson was driving on Blue Earth County Rd. 11 around 3:30 a.m. Wednesday when his truck left the road, vaulted about 150 feet over Hwy. 68, struck a field approach, flew another 40 feet and went over the fence of Minneopa State Park. It then rolled about 130 feet before hitting a tree and catching fire. Bergerson, 29, was pinned underneath.