The next morning, he wasn't softening his stance.
"They're annoying," he said. "I mean, there's cool things and there's very non-cool things. That's a non-cool thing. ... It just doesn't make any sense."
Marlins second baseman Dan Uggla, in particular, was sporting earplugs. So was Rays third-base coach Tom Foley. And so did the umpiring crew.
"I couldn't really hear myself talk," said Rays starter James Shields, who wound up getting the win after hurling a shutout 10th inning of relief.
Rays starter Jeff Niemann said he wasn't particularly phased by the droning sound -- until he finished his six-inning start.
"When you're in the game, you don't hear it, but it was loud on the bench sitting there," said Niemann, who gave up two runs and struck out seven in a no-decision. "I definitely noticed it, for sure."
Niemann and his teammates are all too familiar with noisy giveaways, like the Super Cowbell night the Rays held on April 8. But even though his club plays in a domed stadium that can better amplify sound, Maddon believes the cowbells didn't compare to the vuvuzelas.
"I don't think the cowbell is nearly as annoying as that," he said. "I think on the scale of annoying, [the vuvuzelas] would be 10, and maybe the cowbell might be a 2 or 3."
The vuvuzelas -- made popular by World Cup soccer fans in South Africa -- may have also caused confusion, an out and an ejection in one strange play in the bottom of the ninth.
It a 5-5 tie, Marlins reserve infielder Brian Barden led off with a walk. But while he was trotting to first base, Maddon approached home-plate umpire Lance Barksdale and pointed out that the Marlins were batting out of order.
Marlins manager Fredi Gonzalez pleaded his case before getting thrown out, and afterward said it was Barksdale who "screwed it up." Perhaps the droning moans of the vuvuzelas that reverberated from the announced crowd of 23,242 caused a miscommunication.
"It could have," Barksdale said. "It was the most uncomfortable baseball game I've been a part of in a long time because of that. Whether that had anything to do with it, I don't know, but it could have. When's the last time you heard something like that at a baseball game? Never."
Here's how Marlins vice president of marketing Sean Flynn explained the decision to give away vuvuzelas: "The air horns are part of our regular pregame interactive giveaways for Super Saturdays. We try to create either a sound or visual giveaway. ... We also looked at the timing and knew this would be in the heart of the World Cup. We knew the vuvuzelas would be a big part of the World Cup in South Africa."
But the home team wasn't happy with the giveaway, either.
"This isn't soccer," Uggla said. "I know the World Cup is going on, but this is baseball. We don't want to hear horns or anything like that. We want to hear the crowd cheering. We want to hear the crowd getting behind us, not horns."