Maybe? There are a ton of shitty BT implementations in the wild that will never get patched. This does seem quirky at first glance, but could just as easily affect millions of vehicles, as an example.
If I was so inclined, I would camp out in a busy parking lot with an antenna just to see what I could find.
There was an article posted today on /c/texas (Lemmy World, I think) about them actually connecting to the national grid.
I guess there actually was a cold day in hell.....