This cop either wasn't paying very close attention to what was going on or is just really unlucky.
Dashcam footage from a patrol car records what appears to be a fairy standard traffic stop on a highway. As the driver of the SUV signals and pulls off onto the shoulder of the freeway, it drives over a manhole cover in just the right way that it turns the cover sideways so it's sticking up from the ground.
The cop drives over it and runs straight into it and the front end of the car launches into the air and gets the car stuck on top of it. Crazy.