This sounds like one of those phenomenon's that people see that they can't explain so they aliens! or somthing like to explain it.
It is certainly the sort of story that many won't pay any attention to simply because "UFO" was used in the title. Note also that the only mention of aliens comes from you.
It sounds like he hit something. He lost consciousness and woke up with his body and car banged up.
Must've hit a UFO, haha.
I was actually thinking it sounded like a stroke.
My boss has something (undiagnosed) where he sometimes sees pretty specific patterns of light. I was driving with him once and he stopped driving and started trying to map them out, pointing to where they were. I've never blacked out, but I've stood up too fast, gotten dizzy and seen spots - perhaps it is a similar phenomena.
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