Well that seals it for me...Bird, Bug, Balloon or Blob...
OR the BirdBugBalloonBlob Guy flyin in the wind.....
Looks Birdy/buggy to me.
And for her not seeing it, well she is probably looking at the display screen, not at the subjects.
You can easily go outside in warm weather and hear bugs etc flying, and they are soooo fast you cannot detect them zipping past.....Obviously todays
fast shutter, automatic, digital cameras can now pick up those once invisible bugs and birds and show them in flight, although slightly blurry...just
Going by the distant haze and whitecaps and her description of very windy stormy weather, a stray balloon cannot be ruled out, she didnt see it
because she wasnt looking for it, the driver didnt see it, because he was too busy negotiating the bumps and holes and didnt want to damage the
newish Rental? car.
I dont think its paranormal, just normal, but unusual.