Since your wife is not vaxxed consider looking into infusion right now if she was in the car with him. Clock is ticking.
You tell them she was exposed to a covid person who has quickly gone down hill by the sound of his change in hospital stay.
The earlier you get this treatment the better and you have to spend time jumping through hoops.
From what I read in his post, his wife talked to their son thru the glass window of her car. She wasn’t IN the car with him, so no need for her to start treatment.