Yes, there was recently a question of how Android knew someone's location with such high resolution, even when wifi and GPS were both turned off. The answer was a passive probing of wifi identifiers and using those against the Google SID to location database even when wifi was turned off.
There was even a note about this feature in the privacy policy, IIRC.
Makes you wonder how reliable airplane mode is.
I would imagine if you walk into a home with google's AI doodads all over the place, you're gonna be picked up.