In Cars, they first appeared driving down the Interstate. They find Mack, and they cause some trouble with him. DJ plays some music to put Mack to sleep. Boost and Wingo toss Mack to the left and right, and Boost purposely missed, causing Mack to drive on the edge of the road. The road was bumpy, and a Lightning McQueen doll dropped on the button that opens the trailer door, causing Lightning McQueen to fall out. Then the Delinquent Road Hazards ran away, because Snot Rod was about to sneeze. His sneeze caused him to zoom off, and cause Mack to wake up.