EXCLUSIVE"Ice Road Truckers" star Tim Zickuhr has a perfectly good reason for his ridiculous arrest in San Dimas last month ... he was friggin' plastered.
Zickuhr had nothing but praise for the L.A. County Jail system, which allowed him to leave after completing only a fraction of his sentence.
His wrath was directed at his former best friend -- a kennel owner -- who called cops after a drunken Zickuhr came in and demanded the return of his dog even though the dog wasn't there.
You gotta see this clip -- it's one of the craziest we've posted in a long time.
And speaking of crazy ... given Zickuhr's arrest history, we think the former BFF is better off.