Of course you can still legally operate a mobile while a car is being driven.
However you must be under 5, strapped into a child seat & the phone must only go "beep beep" "911 emergency"
I still see them using them while driving all the time, however they are almost as erratic as those that are smoking while they drive.
You might be able to smoke & drive Incog but I see many who cannot.
How about having a sensor in the car, when it detect a mobile transmission it starts the indicators & gives the driver 10 seconds to pull in