Sorry, I hate nursing administrators as much as the next guy, but this is a pretty idiotic post. When nursing policies interfere with what we are trying to do, it impedes a patient's healthcare. Also, we work in the hospital and have the authority to order tests and do certain things within a hospital. He is a police officer with no authority over a patient's health, who is asking for a blood draw with no regard to providing care. There is no "taking it too far" in this case; you are comparing apples and oranges. He had no business acting the way in which he did (the LAW says he was in the wrong), and he should be punished accordingly.
I also feel camaraderie within healthcare workers, even if it is a bureaucratic clipboard nurse. It's like how we can pick on the weird friend in our friend group all we want, but the minute someone outside of our circle of friends tries to, there will be trouble.
Edit: Read this for more info:
'Stop! I’ve done nothing wrong': Nurse shares police video of 'crazy' arrest by S.L. officer