Do contact UPS. They are gung ho on the whole mail fraud thing. First off you cannot ship snakes of ANY kind through them. Second of all the box was labeled Live Plants, a gross misrepresentation of the contents.
They would be a LOT more likely to do something about this than anyone else. Charge fees and fines, possibly even jail time for the shipper. Don't let them get away with this. She claims she doesn't know how to ship but her boyfriends does. Apparently neither one does.
Gale