My car is an indoor/outdoor cat. He stays inside but is potty trained to go outside for the bathroom instead of using a litter box. When he got put in a cone because of a hash on his leg, he couldn't go outside and had to be isolated from our dog, who is his best friend. Needless to say he was not happy. We found keeping him in our bedroom with the blinds opened helped out a lot. He could look outside, and he was in an environment he was already comfortable with. For a litter box, we got a plastic tray filled with dirt, and eventually he learned he didn't have a choice but to use that. I'm sure your cat will be the same way. And for toys, we gave him small boxes and tissue paper to play with. He was in kitty heaven.
So I would try to keep him as comfortable as possible and try to be as non evasive as you can, so as not to put more stress on him. He will learn things are going to be a little different, but will adapt. 4951