Related issue. Next a phone disconnect similar to this, to stop phone calls and texting.
Someone already proposed equipping cars with cell phone jammers.
Then they will want cup holder banned in cars.
This will P O local gov because they will lose revenues on DWI.
Just watch:
1. The First year or so the Breathalyzer will just prevent you from driving the car.
2. After that the car doors also lock and cant be opened from the interior and the On-Star system will automatically call the nearest Police Station and ask them to send an officer to your location so as to arrest you for DUI.