[bityard]

It will probably continue to send location information, vehicle speeds, and telemetry data back to Mazda even after you let the subscription lapse. We know GM and other car makers do this, so it's safest to assume they all do.

[bpoyner]

Unfortunately I'm pretty sure you're correct. This is just how things are now. You could probably break the antenna (whoopsie daisies).

[7thaccount]

I doubt it. They've integrated these things so thoroughly now right?