Every state has been getting lobbied to do this for at least the last 10 years. These bills come through the legislatures every year, and I think it will keep coming until finally one of them passes. There are manufacturers of the GPS trackers pushing for it, and companies who want to have the state-granted monopoly to manage the tracking and billing. They are frothing at the mouth to get this passed and make a ton of money billing every single person.
Why wouldn't you just use a yearly odometer inspection by the DMV? Even if the legislature wanted to enact such a tax, why involve GPS and third party companies?