Just to update everyone, the CEO of UShip did reach back to me and I forwarded all the info back to Rick.
UShip can not contact the shipper. The last contact with them was when the shipper informed them that they may have COVID. No answer to calls and the shipper has not returned their calls. They have removed this shipper from the platform and will assist law enforcement if/when they reach out to them.
It sounds like the shipping fees and the maximum $500 ship with confidence fee will be given. They do offer an optional UShip insurance but that was declined so they can't provide any other compensation as they are just a broker between independent shippers and people that need things shipped.
It seems like this couple dropped off the face of the planet. Maybe they are sick and will show up. I hope for the best on a positive resolution.