Yes, because an alien race travelled light years in an highly advanced inter-stellar craft to do nothing more than levitate a few submarines above the Countryside, in such a manner that every photograph turns out to be nothing but a blurry tube.
Probably make more sense if it turned out to be 'alien adolescents' who've stolen the keys to their parents saucer and are out having a laugh at our expense.
We're talking about man made tech here.