I had a similar thing happen to Prince when he got his microchip. He had gotten into trouble right before bed, and the next morning he wouldn't walk or anything. Just tucked his tail and sat looking pitiful and sheepish. Of course I was worried sick (new mom) and thought he was having an allergic reaction. Whenever I picked him up he would just cling to me and lie there.
I left for work but felt so bad that I ended up taking him to the vet for the day. Well, 5 hours and $95 later, I found out that he just had a little attitude. That afternoon he was fine. I learned that day the Prince will play the role if I let him.
I'm sure your lil guy will forgive you. Just give him some love
