It was this simple, the cop is used to reading the suspect their rights, and here is this pissant nurse reading him HIS rights! He got pissed and lost his temper with a woman. It is pretty much that simple. The cop has anger issues and needs to get counseling.
Yep, someone challenged his A-tho-a-tay... you do not challenge the A-tho-a-tay of those special people who have a badge.
> The cop has anger issues and needs to get counseling. <
The cop has anger issues and needs to be fired, and then arrested.