Sorry but the flame signature at the flight end says rocket. Looks like everything I’ve seen take off from KSC or the Eastern test range.
Maybe you have better eyes than I, but I can’t see it.
Here’s the best video I’ve found of it:
http://www.necn.com/11/09/10/Mysterious-missile-launched-off-Californ/landing_scitech.html?blockID=348833&feedID=4213
Jet contrail off CA coast last year (Mistaken for missile at the time.):
This event: