I'm glad the surgery went well and he is home. It is hard to see them groggy and out of it. I bet by tomorrow you will have the opposite problem: having to convince him to relax and keep him from overdoing it!
My guy tried jumping the next day and found out that it didn't feel very good. I waited 10 days before letting him go back to his long walks. 2 weeks before a bath.
Did you cry when you dropped him off this morning? I blubbered like a crazy woman. The vet thought she was going to have to sedate me.
Sending gentle hugs to your adorable Max and good wishes for a speedy recovery.