death by a thousand cuts and a 'divide and conquer' mindset leads me to believe that fed would also get more sheepish compliance piecemeal [and expands more later] by not initially saying RFID or GPS right off the bat, and instead allow the newer vehichles to have this kind of 'harmless' intrusion used...ultimately, this process would require a few new divisions of beareucrats that would line up to check papers/cpus.../paranoid theories of fedzilla rant...
They may very well do that eventually, but it’s not in the spec now. People have been watching this sort of stuff for just this reason. Any makes that do record that data have different and very proprietary tools to pull the data with and they are emphatically not compatible with each other - yet.
In fact, it’s gotten so bad that many independent shops are complaining about the dozens of thousands of dollars they have to spend on new diagnostic gear every time someone releases a new generation of cars. The Ford VCM diagnostic kit, for example, is $5K for the very basic hardware, but it’s well over $12K for one that can do most things you’d want PLUS the annual subscription. BMW’s DME-compatible gear is even worse - you used to be able to buy a house for what they want for that thing. VW has a cheap and easy one that’s just a simple cable to your computer, though. Point is there’s no unified standard for this stuff yet and there’s no way in hell the government will be able to get your existing car to rat on you at the gas station using its existing computer. Easier to just use a GPS/RFID box for existing cars and decree a new standard for future vehicles.