Owning a store and controlling the price tags seems different to owning a car and gov’t controlling the plates. Would be like the store giving up control of the price tag to the brands they displayed. On a car it feels like one step away from a publicly displayed social score.
I think the stores should decide the prices, and the customers will be able to choose which store to go to, but now they have a smarter way to analyze whether they are pricing it reasonably looking at global and local situations