Fleet of silver/white chevron shaped UFO craft

I was driving North on the 605 freeway Dec. 23, 2022 @12:35 pm (with my spouse and my son) heading to L.A., and as the traffic slowed down to a crawl and momentary stop, I suddenly noticed up in the sky ahead a fleet of chevron shaped flying objects moving in unison in a semi circular to and fro pattern. They all were a shiny metallic color with a white top or bottom, it was difficult to discern as they were moving and when they did their turns they would completely disappear from the naked eye and then immediately reappear and continue to do their maneuver in unison. They did this for approximately 3 minutes, maybe a bit longer, then they just vanished. And by vanished, I mean they disappeared. They didn't fly anywhere else or towards another direction, they just completely instantly vanished.