The video, which was uploaded to Facebook, showed major damage to the passenger side of the auto.
After the truck pulled over, Steimke could be seen approaching the truck driver, demanding why he kept driving when there was clearly a vehicle stuck to his truck.
"Stop, he's not stopping", the driver of the Nissan shouted to Steimke while pointing to the driver.
CAJON PASS After a sedan crashed into a big rig Wednesday on the northbound 15 Freeway near Highway 138, the truck dragged the auto for a few miles - seemingly without noticing - and the whole thing was caught on cell-phone video.
Horns honk in the background as the truck finally comes to a stop in lanes.
The truck driver also asked to remain unidentified.
"I didn't know it", the driver responds. "He's on your truck", Steimke exclaims.
"What do you mean?"
Another vehicle appears to have stopped the big rig by getting in front of the truck.
Somehow on Wednesday, a Nissan driving on a Southern California freeway got wedged into the rear wheels of a tandem truck.
KTLA is seeking additional details from the California Highway Patrol.