I honestly don't see why people are so put off about this. Maybe its just because I work in this type of tech field, but our phones do the same thing. If you have a smart phone (nearly everyone) you have GPS most likely. If you have GPS your phone company can find you. If you turn off GPS, something tells me they have the ability to turn it on or keep it showing dormant while they track you.
Not speaking as a conspiracy theorist though, I mean I understand why people would be put off. I know where they are coming from, I just don't understand it completely. Already we are able to be found via our cellphones typing away on teslamotors.com. Nearly everything we do is tracked in one way or another.
Frankly Tesla's ability to give service to our vehicles remotely and remotely diagnose is awesome and I really don't care if they see my car at a Walmart while I pick up groceries. I realize its kinda big brother, but I also feel like the boat has sailed or that train has passed and other type of phrases. I feel like its been like that with our cell phones for so long, its already a norm.
It's when they use this information against you that I would be worried, though I suppose this could be seen as one step closer to something like that.
EDIT: Also, not to mention all the texts and browsing they can pull from your phone and computers.... I mean its pretty much a guilt trail if your doing something illicit and you get caught.