4:53 PM PT -- Cops in Hawaii have just released Penn's mug shot ... and it's clear the dude wasn't pleased to be in trouble with law enforcement yet again.
Officials also provided more clarity on the incident ... saying cops were called to the scene in Honokaa at around 4:51 p.m. on Saturday after Penn had been accused of reckless driving on a business property.
Cops say witnesses told them Penn had been quarreling with employees ... "talking loudly" at them before driving "off the property in a reckless manner."
Officers say when they eventually went to question Penn over it all ... he displayed all the signs of being drunk -- so they arrested him.
UFC legend B.J. Pennwas arrested for drunk driving in Hawaii over the weekend, TMZ Sports has confirmed.
A spokesperson for the Hawaii Police Dept. says the 42-year-old MMA fighter was taken into custody on January 23 in Honokaa, which is on the Big Island.
Cops have not released the details surrounding Penn's arrest -- however, there is a video circulating on social media that appears to show Penn ranting at cops while being taken into custody.