You keep on believing that.
When it's here, and the pump can't connect to your odometer ... you don't get gas!
Then what?
Not all gas is dispensed into a car.
Take the large tanks in the back of pickups used by landscaping compaies to fuel their equipment as just one example. Many of those hold more gas than many cars gas tanks.
Or just get yourself a couple 5 gallon gas containers and fill those up and then fill your tank when you leave the station.
you think that every gasoline pump is going to be modified to attach a wiring harness to your car to make sure the speedo circuit is intact? so grandma is going to have to learn to attach a OBDII connector to her car to get gas? let's get real here, the only way to enforce this is to read the odometer during the yearly inspection and levy the tax based on miles driven since last year.
Well, someone will invent a "Mod chip" for your car, just like with a XBOX or PS2.
How would they handle someone from out of state? If this applied in California, what would happen to an Arizona driver passing through the State?