The issue here has nothing to do with the device and everything to do with the fact that car-brained America is so cowardly and broken that they will do some Rube Goldberg stunt before they even consider taking cars away from alcoholics.
It's actually an easy problem to solve, some places have done it with great success. You can't effectively stop DUI by taking the car away. The problem is the drinking. You make someone test every morning and if they've been drinking they get the slammer for the day. You don't need to take away their transportation.
People need cars to get to work.
If “car brained” means recognizing how great cars are for improving our lives, by letting us get to places quickly, then I don’t see anything cowardly or broken about it. Just seems rational.
Nobody in human rights would allow that. Take away the car and people cannot live.
The above is sadly serious. It is almost impossible to find a job and a house you can afford in walking distance of each other, demanding there be things like grocery shopping as well make it not feasible for most people. Taking away someone's car is cruel and usual punishment that cannot be accepted.