If you are using when you enter and leave the system...you are being tracked.
They have been using this information, in its aggregate, ever since they issued these things.
Anyone who believes otherwise is naive.
We have EZ TAG here in Houston for the toll roads. Their advertising says”Let us introduce you to that thing on the right” and then shows a pic of a gas pedal. There is no enforcement of the speed limits on the toll roads around Houston. . Between 80 and 90 is the norm.
As a lot of cheating spouses have since found out during the divorce proceedings.