How do you go 3 years collecting personal information and just now realize it
Ya know, I thought that was the wrong number, but I figured I'd go with what the commenter had said.
And yea, it really is useless data. What could they have picked up in that short amount of time? A Credit card number? Nope, encrypted with SSL. An email? Generally sent with SSL. They probably got some random bit of porn.
Actually, I was watching the news yesterday, and apparently, anyone can see your Facebook profile (if you accessed it) on a public wifi network with a quick, legal program. So I'm sure Google must've gotten that sort of thing if the unlucky person was on Facebook as the car passed.
All in all, Google fail. Oh, and review your code. :P