Rehab/SNF/ECF may be good for your dad until he clears, although it may not stop the crazy calls. At least you know he would be safe. In addition to what I talked about on the phone, if he has been in the ED the whole time, that can be incredibly disorienting. Noise, poor sleep, disruptions. That makes anyone a little crazy after a few days, much less someone his age. There is a whole syndrome called ICU delirium from the constant chaos and sleep disruptions.
They did a nice (fast) job on the counters if they got all that done in 90 minutes.
Good luck with dad and the kitchen.
j