The problem with these laws...they're practically unenforced. Only way you get a citation is if you are in a crash and a witness saw one in your hand.
Here in Nebraska we've had one of those laws for a while. Distracted driving phone use keeps going up. Even after several teenagers crashed and died as a result. One HS girl actually smartphoned herself into a near-fatal crash....survived, her friend in the passenger seat didn't...only to kill herself in another smartphone-while-driving crash less than a year later.