"The operator was traveling at approximately 73 mph when he fell asleep, losing control of his vehicle. The operator left the travel portion of the roadway onto the grass in the median. The operator tried to gain control of the vehicle by steering toward the right, causing the vehicle to cross back over both travel lanes and into the ledge off the east side of the roadway. The vehicle came to an uncontrolled rest facing southbound. The engine was thrown about 100' north from where the vehicle came to rest."