[Reeses]

It was launched not far from Point Mugu, a naval weapons testing ground:

Also note the corkscrew contrail. This is typically done during missile tests to waste some of the rocket energy so it doesn't overshoot a test area.

Occam's Razor points to navy weapons test.

[StolarStorm]

Yep, looks like it now. I can also understand the delay in releasing the info on it. The bureaucracy and red tape regarding declassifying such things is intense. Just to get a sign off to calm people down could take days.

[Rutles4Ever]

Occam's Razor points to navy weapons test. But then this is not something to deny. Especially if you do it in daylight hours off the coast of millions of potential eyewitnesses. And especially in the flight path of LAX. There's nothing scandalous about a missile test. There's no reason to cover one up if the explanation is that simple.

[Citizen of the Savage Nation]

Yes, and it came from the Navy’s backyard. Most likely explanation...and the DoD denies this stuff all the time.