Crazy Road Rage Knockout 'Your Ass Is Grass, Dude'

7/20/2015 7:28 AM PDT

Crazy Road Rage Knockout – 'Your Ass Is Grass, Dude' (VIDEO)

It’s a case of road rage justice that left a drunk driver knocked out cold on a sidewalk.

It all went down in Albuquerque, New Mexico … there are two BIG thuds here --- first, the guy in the sliver truck hitting the old man’s son, and then the son hitting the ground ... HARD.

The man in the truck wasn’t arrested, but the guy on the ground ended up in the slammer … booked for drunk driving.