Tracking occurs when you have your "Location Services" set to "on" and your "location history" also on. I think the recent stink was that Google was collecting data on people even when their location history was set to "off". But if you have your GPS location service set to "off" then no tracking will occur except the coarse tracking that can occur by knowing what cell tower you are logged into. But that means you can't use turn by turn navigation or search Yelp for nearby restaurants, etc.
No, they don't. They sell the EZ TAG.
It is completely different than the EZ Pass.
The EZ TAG works on toll roads in Texas, and apparently in some adjacent states, but most certainly does not work in the Northeastern US.
The EZ PASS, on the other hand, works in the states that I listed in a previous post, but does not work anywhere in Texas.
This is an important distinction when discussing various toll tags. Accuracy counts...