Truck hits rock on 74 toward Idyllwild and rolls in roadway. CHP Fire & AMR finds truck abandoned

Truck hits rock on 74 toward Idyllwild and rolls in roadway. /Shutting down road to and from the Idyllwild mountain to one lane .
 CHP Fire & AMR finds truck abandoned and that no driver could be found.
Witnesses stated he walked away from the vehicle with minor cuts and scratches and may have been picked up by a female.
If anyone knows of anything please notify CHP