Sounds like you probably just need a megaphone, and someone to stand up and publicly ridicule those whom act like jackasses.
Really it will just get worse there. Eventually the thug types will start hanging out there at all hours of the day, and probably start fights. The sooner someone takes charge over the area the better.
Even though I haven't gone down there this year, I'd hate to lose the opportunity to. If no one has a megaphone, I'll look into purchasing one.