The officers had to exit the northbound highway and get back on going south, to remove a man walking on southbound highway.
The drunk woman took same exit and on ramp, and tried to get through the gap between the police car and shoulder barrier, on the right. The police car would have have had red and blue lights blazing.
How do you aim at that gap, which is where the cops will be, by accident?
Tie her to the car and drag her.
Maybe she felt “disrespected” and decided to do something about it.