Right but it is tracking the specific registered car, so it is not about money at all.
You cannot just move the pass from one car to another.
Yes you can. You can add multiple registrations, license plates, to an ez pass. Why don’t you go on your account and see for yourself?
https://www.ezdrivema.com/Transponder-Information
Additional Transponder Information
Additional Vehicles
Your transponder may be used in another vehicle provided all vehicle license plate numbers in which you intend to use your transponder are listed on your account and all vehicles are the same class. Commercial license plates, including dealer plates and livery plates, are not permitted on individual accounts.
Ready to concede the argument?