He was given a straight red card seconds after the break for bringing down Shola Ameobi.
Rangers boss Neil Warnock has long been counting down until the end of what has been another turbulent season in west London.
Warnock, the club's fifth manager of the campaign, said: "I can't say I was disappointed when the final whistle went.
"I'm looking forward to the summer and bringing my own players in.
"But it was a great atmosphere today and we want that every week - and the only way to get that is to be up at the top."