Only if Rudy loses Florida. If he wins Florida by any margin, Rudy becomes the story for a while and obtains some momentum to turn some of those poll numbers around. For the last month, the only Giuliani stories you have heard have been about his poor performances (in states where he didn't campaign seriously). Giuliani's wait-until-Florida strategy had one big flaw: he didn't expect the lack of news coverage to render him irrelevant. If Giuliani wins Florida, he becomes a factor and will remain so through the convention.
That’s all irrelevant, since he won’t win Florida.