[mdp2021]

That does not seem to be too different from having a visible, readable ID plate - the information spread is "individual at that reader at that time" (though yes, if unneeded it should not be there).

The issue is with more with recordings and with the principle of sending data around beyond the ID - and especially with the contract that would make such activity accepted.

[pests]

Most people know a camera when they see it. Most won't recognize a small radio collection device on the side of the road.