Aside from the fact that it's kind of a bonehead move to do this to drivers in the middle of all this craziness, the show was pretty cool.
It went down at around 10 PM and as fast as it started, it was over. They clearly knew if they hung around there would be consequences. It's illegal to set off fireworks in L.A. County with certain exceptions for controlled displays ... and this clearly wasn't one.
The Los Angeles County Sheriff's Dept. showed up, but a little too late. We're told so far, no suspects.