*edit: I don't mean to imply that anyone claiming to have seen something they couldn't identify in the sky is a kook/drunk, I do strongly believe that there are credible observations of unknown flying objects, just that they are unlikely to be alien in origin.
I will say my thoughts on the matter:
Are there aliens out there? near 100% chance (given the size of the universe it seems insanely unlikely we're the only planet with life)
Are aliens within visiting distance of earth? pretty low chance
Are aliens visiting earth mainly focused on the rural united states? near 0% chance