Stephanie:
First, I'm SO sorry you have to go thru this at all. It's awful - I can't even imagine...
Second, call the PO. Call now. Relay what happened with your mom calling scared, then not letting you in. Get this started because it may not be something that happens in a day, and god forbid anything else go wrong.
You are in our thoughts and prayers. Let us know if we can do anything.