I have a question and did not know if I should file it under etiquette or this one but I did not see the other?

I will elaborate here on the ordeal. I have a friend / co worker, who always is asking to get together with me at my house, which usually means an over nite stay for her. It has been a month that she's been here, because to her complaint "something always comes up". Yes, I know it does I say with my fingers crossed. Anyway, I had an unexpected day off from work so I thought I would invite her over, which of course was agreed to only after I extended it for over nite. OK. I had to go to work all night but she didn't seem to mind. So I get home from work, and go to sleep about an hour later (I bought us both breakfast and brought it home) I just "presumed" that her sister was coming to pick her up after I got off work, but she never showed up. So I got up for awhile. Then I asked her what the plan was on her getting back home. She said she never had a plan. Anyway, I ended up having to take her about 10 miles to her home, and she knew I had no sleep since 2 nites ago. But she thought I should take her, but I thought it was her obligation to be picked up the next day. So people of polite society and etiquette, please advise me, but only if you are sure of what was proper or improper. Another thing that annoys me with her visits is that she always has to take a bath and wash her hair here. She has those ackomodations in her house. Remember, I have no urgency of getting together with her as she does with me, I can see her at work, and that is enough for me. I would not mind if she stayed once every 5 months actually. I'm not a lonely person.