I used to live in the area that had the recent Tick fire in Los Angeles county, The houses mostly have concrete tile roofs which are fire proof. The houses catch fire when embers are drawn into the attic through the soffit vents. Having an easy method to close them would prevent many house fires.
It might have done better if they actually made it go someplace useful, like the airport. But they couldn't do that because they have to protect the taxicabs.
How many British bank robbers declare the money they steal as income and pay income tax and insurance tax on it? 19K tax free is worth more than 19K before taxes.
What will happen to all of the Barney Fife's of the world if this is implemented. With no more speed traps to generate income for local governments, the cops will have to find something else to do or be laid off.