Highly unlikely

It's actually illegal to take coins out of a fountain (except in NYC, apparently), and it's considered a misdemeanor at best, depending on how much money you take. You can't just don a waterproof suit and boots, and simply wade into dozens of public fountains with brooms and buckets, effortlessly taking all that money. The fact that there is scene after scene of the guy doing that, and with NO ONE else around to witness it, much less a security guard, groundskeeper, or police officer, is just ridiculous. In real life, that guy would have been arrested ten times over, arraigned, and sentenced to community service, or actual time in prison. People all across the country have been arrested (look it up on Google) over the past few decades for stealing less than three dollars from a fountain. It's happened multiple times, in multiple states. The entire premise of this movie is flawed from the outset, and is so unrealistic, it's maddening.