Sorry to have to correct you again but “liberal” is a term referencing a political ideology.
What did you think the word was when you typed it?
As to whether a policy existed heretofore, most of those policies are cut and paste things provided by hospital management consultancies and while there might have been administrators unaware of it, this one is a standard feature for cancer centers and I am willing to put up a hundred bucks that it was indeed buried in there somewhere. No way their insurance company took them on as a client if it was not there at their initial review.
Perhaps they have a buried policy concerning smokers or other odor producers and perhaps they don't. If there was a policy in place I don't think this would be a story, further the medical facility in question should have never hired her in the first place. Further yet again is that with the extreme steps she took I sincerely doubt she smelled of cigarettes at all. I posit, yet again, that it was an excuse to fire her because she was a smoker and refused to quit. Her State of residence specifically forbids a company for firing someone for any activity outside of work that is legal. This includes smoking.