Dad is now at a Rehabilitation Center, getting physical therapy. He is walking fine now, and his voice is normal too. He is still having some swallowing difficulties, but I would say he is 95% better. He is happy and seems to love all the attention he gets.
One of the therapists gave him some extensive mental tests on Friday and told me he definitely does NOT have Alzheimer's disease, but has become a lazy listener, depending on others to fill in the blanks for him, and since he also has hearing loss, and can't see, he hasn't retrained his other senses to make up the loss of vision. She is working with him on that. She also got him to agree to wear his hearing aids again. He hasn't worn them in about a year, so I took those to him later Friday.
I think he will be home very soon. Thanks again for all your support on Monday. That was a terrible day.