There have been several reports that a large number of prostitutes visit the host city of the Super Bowl each year:
Local police forces have announced that they will be especially diligent this week, with active stings targeting both prostitutes and potential patrons. Still, as many as 100,000 prostitutes -- male and female -- will descend upon South Florida in hopes of cashing in with football fans before the Super Bowl
Pedigo estimates 15,000 prostitutes will be brought to North Texas for the Super Bowl, many against their will and that many of the women selling their bodies are underage and on the verge of homelessness.
However, the Houston Press published an article claiming it was a hoax:
Yes, one of America's great urban legends is again being trotted out just in time for kickoff: The notion that legions of out-of-town prostitutes descend on whichever city hosts America's Big Game.
[...]
Said Phoenix police Sergeant Tommy Thompson after the 2008 Super Bowl: "We may have had certain precincts that were going gangbusters looking for prostitutes, but they were picking up your everyday street prostitutes. They didn't notice any sort of glitch in the number of prostitution arrests leading up to the Super Bowl.
Is there evidence for these claims of a local influx of prostitutes following the Super Bowl?