Holy heck. Whenever I'm visiting in a hospital and a nurse comes in I always move out of the way - put myself into a corner, or say I'll just step out.
In the ER especially, with my husband. I always say, "I'll just move my chair out of the way for you." Most of the time the nurse will say, "Don't worry, you aren't in the way." But it's still good manners. I figure they are working to help my family member/friend to get better. Being in their way is not a good thing.
I'm am honestly shocked at the manners of some people in a hospital setting! I have never asked or been asked if I wanted food either, I figure there's vending machines in the waiting room if I'm gonna be there a while.
Sadly it's not just in the hospital setting. People are rude everywhere these days. On the roads, in shops. It's very sad and frustrating when you are trying to be polite.