Traffic stop -- possible world record
Video here. A traffic stop for speeding turns into not one but two chases, assault on an officer, attempts to smash the windows, shots fired at a van full of kids (and down a highway).
The only good news is (1) the attempt to pull the driver out of the van failed, so she and the officer did not wind up laying on the highway and being smushed by a passing 18 wheeler, and (2) the officer firing was a bad enough shot that he missed the van, the family, and everyone else.
My guess: when the officer pulled her over the first time, he didn't have his clipboard with him, so he walked back to his car. She may have interpreted that as the stop was finished, so she drives away. She does stop the second time, after all. But on the second stop, everything goes insane, so she drives away and doesn't stop until she gets to her hotel.