SOMEone is lying.
It wasn't that cold for her two nights: Thursday 10/30 72-46, Friday 10/31 70-52. Saturday 11/1 69-57.
If she wasn't lying, the temperatures weren't that harsh - warm clothes, blanket and rug could have kept her warm. The police searched all her friends homes, though some may have given her shelter or lied about her presence. Just saying the cold wasn't low enough to discount her story if she was prepared.
I wonder why the bloodhounds didn't find her. Darned odd, the entire tale.