For the most part, there are large, flat, grassy run-off areas surrounding the paved portion of the track. Assuming there is no damage to your vehicle when you exit the pavement, you will be black-flagged by course marshals and expected to return to the pit area immediately.  A debrief will then occur with your instructor, your run group leader, and the Chief Instructor to determine the cause of the incident.  Students are generally permitted one four-wheel-off incident.  However, students found to be driving in an unsafe or unacceptable manner will be expelled.