I'm not sure if that is the requirement, but these are much larger.
CNN interviewed a guy that says it is all perspective. That is the contrail from a jet. It is not vertical but coming at the cameraman. The trail leads over the horizon. The vehicle is way too slow for a rocket.
A rocket coming going horizontal-ish in your direction could appear to be moving quite slowly.
What I'm really wondering is what happens after the end of the video. It seems a bit odd that they'd get this thing in their viewfinder then just leave it.
lol, now they're saying that apparently it could have been an errant launch. I don't know what would be worse: military/someone else pressing big red buttons that they really shouldn't be pressing, or some unknown BAMF launching missiles off your coast for the lulz.