Wasn't there a story recently about android phones still being tracked and tracking wifi hotspots even with wifi turned off? I believe location services still works pretty well even with GPS and wifi off.

I would imagine if you walk into a home with google's AI doodads all over the place, you're gonna be picked up.

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.

Airplane mode doesn't turn off the radios, IIRC; it just stops transmissions.

Rumor is that even when your phone has been turned off, it can be turned back on remotely.