Arnold Schwarzenegger was caught red handed speeding through Beverly Hills Wednesday ... BUT the cop let him skate -- 'cause seriously, who challenges The Terminator?
It all went down on the rough streets of Bev Hills ... the ex-Governor put the pedal to the metal of his Mercedes AMG ... then was stopped dead in his tracks by a man in crisp blue.
"The Expendables" actor must have turned on the famous charm that both cops and maids just can't resist -- Arnold got a warning and was sent on his merry way.
Hasta la vista, baby , $400 ticket.