What do you do if there are older kids at the park acting like...gross, profane older kids?

Think preteen/teenager aged. 5 boys at the neighborhood park we frequent that is usually very quiet. My 4 y/I son and I are the only other people there. These kids were looouud, climbing on and completely obstructing all of the slides and the playground tower. Every other word is a loud profanity, fuck, shit, etc. and they're joking about how they pee in the slide every time they're there and how they're about to do it now. Do you just leave and go somewhere else? That's what we did. But I also felt like I should call them out or say something. I also have a 12 y/o boy and if he was acting that way out in the wild I hope another adult would call him out and embarrass the f outta him. But what do you even say in these situations??