McCarthy's last match at Molineux ended in a 5-1 reverse to Black Country rivals West Brom and led to his dismissal from the club last February.
The Town manager praised the majority of Wolves fans who gave him a warm reception on his return to the club, but he took a swipe at the boo boys who are now gunning for his replacement Stale Solbakken.
"I would be lying if I said it was nothing special because it is," McCarthy said. "My last game here I had to go out of the back door and I will never forget that. It was a real horrible day for me.
"So to have won and to have had the applause and ovation I got I think shows what most Wolves fans really thought about me as opposed to the minority that would not let me leave by the front door.
"The ones who were singing to get me out are doing it to Stale Solbakken now. Be careful: you might get what you wish for.
"But that was a lasting memory for me now - being on the pitch and being applauded off.
"It was lovely and that is how I would like to remember my time here rather than anything else so thank you to all of them who did that for me today."