Way to go, Brainiac!
I worked with the police my entire career. Most of them are good guys, but I saw this type of stupid behavior on numerous occasions. I was threatened with arrest on a few different occasions by idiot cops. They never actually did it because each time they were the ones in the wrong and the balance of power was in my favor. They were bluffing to get their way, but I didn’t blink and I had my crews to back me up.
In this situation the nurse was in the right and he knew it. But he thought with her out of the way he could do what he wanted. She didn’t have a crew, coworkers or doctors that he thought would stand in his way. The guy is obviously not the sharpest tool in the shed. He probably has run into difficulties in the past and gotten away with it.