amongst other things like e-mails addresses and browser history

This is so incedibly wrong...
IF you sent such these informations (OR ANY OTHER) over an unencrypted WLAN (i.e. everybody can read all your data all the time and you're among the stupidest 2.6% of the population) exactly in the second when the google car passed by, then they stored the RAW PACKETS, which MIGHT include some E-Mail addresses (the ones used in the current mails, not your whole addressbook) or URLs that you are requesting right in this moment (NOT you browser history)

IMHO the assumption that google did this on purpose is absolutely absurd, because the expectation value of collected data is so small, that nobody would invest so much into trying it - AND they wouldn't have gone public voluntarily (which they did, but media like to "forget" this little fact...)

A Google engineer [published] a zero-day vulnerability in Windows XP
just five days after it was reported to Microsoft

maybe you should look up what "zero-day" means...

and will kindly ask those who don't clean their plates to not come back

Why would I WANT to come back to a place where I'm treated like an asshole, just because I'm full?

If they think they are better off without customers, then good luck...