Warnock was incensed by referee Russell Booth's decision to send off winger Hogan Ephraim in the 42nd minute but saw Wayne Routledge's late goal put him on track for a seventh promotion as a manager.
The 62-year-old was not happy with the conduct of Royals captain Matt Mills in Ephraim's dismissal but admitted the joy of winning against the odds mean he is unlikely to retire any time soon.
He said: "It's one of the best wins of my career to be honest. It's nights like this why I don't retire. My heart will probably go first.
"I'm so proud of my lads and you can't buy a feeling like that. Every one of them gave me everything and when I'm sat on my tractor after I've retired, writing the odd newspaper column, I'll miss nights like this."
Source: PA
Source: PA