The Scot raged in the post-match press conference, as he felt his side deserved a penalty.
Ferguson said, "It's the most blatant penalty you'll ever see, there's nothing to think about.
"The defender has just pulled Andy Butler to the floor. The linesman can see it, he's stood looking right at it.
"It's the clearest penalty you'll see all season, and the goal is a clear foul, and the linesman is laughing at the end of the game about it. I think it's disgusting.
"The referees are part-time and the standard is appalling, their fitness levels are a disgrace, I've had enough of it.
When questioned on what action the FA could take, the 45-year-old said, "What can I do? Shoot them, it would be a good idea."
Before adding, "I have to shut my mouth and I have to make sure I'm being respectful, but when they're laughing at the end of the game saying 'it's my opinion and that's what counts', I think we've seen enough now."