This notion of privacy will soon be considered "quaint".
It's my prediction that our contemporary notion of "privacy" will be obsolete in the very near future, and forgotten altogether in a generation. Consider that those now under 30 have spent their most impressionable years in a world of reality TV and YouTube; where nearly all forms of public exhibitionism no matter how crude or stupid is not only tolerated, but is encouraged. Kids today tweet details of their daily lives that would have horrified our parents, and even install applications on their smartphones with the sole purpose of broadcasting their exact whereabouts and activities to anybody who cares in realtime.
Who is going to care about privacy when nearly everyone is already literally and purposely broadcasting every minute detail of their personal lives to the entire planet?
Do you really think that these same people are going to be that concerned that their phone, automobile or home appliances are going to be sending off nearly undecipherable strings of hexadecimal code to the IP addresses of who knows who? Probably not. All they wanted was the free wallpaper or ring tone.
It's only a matter of time before two-way GPS or like devices will be mandated in all automobiles for taxation purposes as EVs eventually replace conventional gas and diesel vehicles.