If a disabled vehicle or a vehicle involved in an accident resulting only in damage to a vehicle is obstructing traffic, the driver of the vehicle shall make every reasonable effort to move any vehicle that is capable of being driven safely off the roadway as defined by Section 56-5-460 so as not to block the flow of traffic. The driver or any other person who has moved a motor vehicle to facilitate the flow of traffic as provided in this subsection before the arrival of a law enforcement officer shall not be considered liable or at fault regarding the cause of the accident solely by reason of moving the vehicle pursuant to this section.