Rowdy racecars blocking entire apartment entrance

Anyone know what the hell is up with this? My apartment complex's garage entry is 100% blocked by bro bro racecars right now, and some of the cars are revving up and down our street. I don't really care about the noise, but my neighbors literally can't get home in their vehicles now. I called 911 50 minutes ago, but no one has showed up. Tf is up with these bratty dudes?

edit: they finally left the entrance of our apartment's garage after being there for over an hour.