You're not hopeless! When things like this happen your brain goes "What can I do?!" And you do what comes to mind first. Trust me I have done much sillier things. I would keep it warm for her and put down salt (I may be wrong about salt hoping salt is okay, someone will correct me If I'm wrong) if you can't get her out so you can see where she has moved to if she does come out.

She may not go for the food but worth a try!