At 1243hrs. Whiteford Volunteers were dispatched to the 4000blk. of Grier Nursery Road for an MVA with Rescue. At 1244hrs. E613Chief 6 A692 called enroute. Dispatch reported a single vehicle roll over with the driver still trapped inside. At 1247hrs. units arrived found that the driver had self-extricated themself. The driver was checked by EMS and refused medical treatment. Units cleared at 1303hrs. Units E613A692Chief 6