I think a better solution to the narcissistic need to constantly be on a cell phone, even while driving, would be for the police officer to seize it as evidence (it will show whether it was in operation at the time of the citation) and the driver only gets it back when she goes to court.

A couple of weeks without her toy and she will get the message!

And yes, I used the feminine gender based on my personal observations of the majority of those I see on cell phones as I drive down the street.  

"I'm here, where are you?"  "I'm driving to the store.  What are you doing?"  "I'm at work."  "What are you wearing?"  "My new blue outfit."  "What are you wearing?" "My old green pantsuit."   "How was your date with John?" etc. etc. etc.

Those are the conversations I used to hear when I rode a bus regularly.  I doubt they have changed much since.