"...Davis said the creature tried to grab at the car and then jumped on its roof as he tried to escape, clinging on to it as Davis swerved from side to side in an effort to throw it off. After he returned home, Davis' side-view-mirror was found to be badly damaged, and scratch marks were found on the car's roof--though there was no other physical evidence of his encounter..."

source: http://en.wikipedia.org/wiki/Lizard_Man_of_Scape_Ore_Swamp