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The graphics below use the characteristics of the recorded phenomenon -- as viewed from positions northward up the coast -- plus basic perspective -- to settle the question of whether the videotaped object was outward (westward) or inward (eastward) bound.
The first graphic depicts the trajectory of an object climbing outward bound. It is not significant, but I have approximated the "35 mile" offshore "launch point" distance estimated by the SeeBS camera crew. Notice on the right that, when viewed from a point directly east of the trajectory, it appears to be purely vertical in direction.
In particular, notice that, when viewed from the north the trajectory is to the RIGHT.
In this second graphic, I depict the trajectory of an inward (eastward) -bound object. As with the outbound case, when viewed from directly to the east, its trajectory appears to be purely vertical.
BUT, when viewed from the north its trajectory is to the LEFT. 
This fact is clearly demonstrated by the CargoLaw webcam sited at LAX -- well to the north of the SeeBS video viewpoint:
However, it is not necessary to rely on static viewing locations to the north -- because the contrail was drifting rapidly to the south -- as seen in the GOES WEST satellite images and in the sequence of still images taken from Rick Warren's static location in Long Beach.
The following graphic uses a set of perspective views of an outbound track project both to the north and to the south of a viewpoint directly to the east of a westbound trajectory. The image at the bottom was used repeatedly to produce the perspective projections. The vanishing point used is indicated.
This final graphic depicts an incoming (Eastward-bound) trajectory in the same manner:
It is patently onvious that only the "incoming eastbound" examples match reality -- or, even, SeeBS's video abortion.
Perspective causes objects (or the farthest end of a contrail) moving across the field of view to appear to move slowly (low angular velocity). Conversely, objects near the viewpoint appear to cross the view field rapidly. Notice as the trail drifts southward, it appears to "lean down" to the left, That is caused by the fact that the perspective effect causes the contrail to appear to "pivot on" its distant vanishing point.
The "perspective leaning" effect is obvious in Mick West's composite of four static viewpoint frames made by Rick Warren: And, as the contrail drifts to the south of the viewpoint (is viewed from the north) the same left-pointing characteristic shown in the LAX webcam view is apparent.
To see these effects dynamically displayed with a larger set of images, view this GIF animation of the Warren photos created by Mick West.
http://consci.s3.amazonaws.com//images/clipped-animating.gif
The object videotaped and presented in a confusing video edit by SeeBS was not traveling from the sea surface near CA and headed westward (or northwestward) out over the Pacific Ocean.
Beyond a shadow of a doubt, it was inbound eastward toward CA.
And it wasn't a "missile" of any sort (or nationality) -- it was the high-altitude contrail formed by the plain old MD-11 of UPS Flight 902 from Hawaii to Ontario, CA.
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This been a challenging and fun exercise! -- I want to thank lbahneman, Mick West, and Rick Warren for their impeccable original analyses and for the use of their images.
And heartfelt thanks to Rokke and many other clear-thinking FReepers for fruitful conversations and other contributions to "wrapping ALL the data around" this non-mystery.
TXnMA
