Why was it ridiculous? My thought was (other than the obvious point that it's headed easterly ... oops! Say ... how long do you think it will take somebody to conjure up a legit flight heading northwest as a plausible explanation? I mean, they can't quite change the sun or start reversing negatives, so ...) ... anyway, I figured, because of watching planes, that again, it would be high, but not so high you couldn't definitively ID it as a plane with visual aid or magnification -- like a pair of binoculars.
Version 3.0 of the Plane Theorem !
There actually were a bunch of planes heading up the coast going Northwest. Maybe we can pick one for them. Might be fun. Most were hugging the coast tight, though. Definitely not 35 miles southwest of LA. I think there might have been a couple of out bounds that could be candidates however....