Warburton was subsequently hit with a three-week ban, after pleading guilty at an International Rugby Board disciplinary hearing.
But the fearsome flanker is free to return to action in time for the start of the Heineken Cup this weekend and is aiming to forge new positive memories.
"I hope it's not what I'm remembered for. But if in a year's time or 10 years' time people are still talking about it then maybe it will be," said Warburton.
"It was a massive event in rugby, but that's just sport. Those things happen and it's up to myself to be positive in the future and create some better memories, whether that's with Cardiff or Wales.
"To be honest I stopped thinking about it about two days after it happened and I am just focused on the Blues now."
No Welsh side has lifted the biggest prize in European club rugby, with Cardiff RFC coming the closest in 1996 when they were pipped 21-18 by Toulouse in the inaugural final.
But Warburton reckons the Blues, who won the Amlin Challenge Cup two seasons ago, have the armoury to go all the way.
"The Heineken Cup is always a target and we want to be the first Welsh team to win it. There's so much competition and it's very tough to do, but with a full squad I'm confident we have the capabilities to do it," added Warburton.
"You look at the Heineken Cup today and there's probably about 10 sides that could win the competition. It's such an exciting tournament.
"We have Racing Metro away from home first up and then London Irish in Cardiff. So we have two tough fixtures to begin with and it's important we start well.
"If selected I'm really looking forward to proving a few points on the pitch."