Ron White got a rude awakening after a man allegedly kicked the crap out of his tour bus in the wee hours of the morning ... prompting the comedian to rush out in his long johns wielding a golf club.
Cops in Greenville, SC tell TMZ ... it all went down around 2:30 AM Friday when a driver sideswiped White's parked tour bus with his truck. Cops came and determined Bradley Palmer was at fault ... which really pissed him off.
We're told cops knocked on White's bus to hand him the collision report ... but he was asleep and no one answered. That shoulda been the end of it ... but get this -- shortly after, cops say they got a second call ... about Ron chasing Palmer with a golf club.
Ron says he woke up to someone loudly kicking his bus. He dashed out of the bus without putting clothes on ... and gave chase with the iron.
Cops checked for damage and found shoe prints that corroborated Ron's story. They arrested Palmer and charged him with malicious damage to property.