Using Google Maps via the phone does not automatically constitute distracted driving. If it is set up before leaving and not messed with while driving it is no different than factory navigation or portable units. In fact, the main reason I prefer Google Maps over the factory navigation units in both of our vehicles is that does a much better job of directing us verbally...reducing to eliminating the need to look at the screen at all.
Now if you don't have the will power to NOT pick the phone up when a call or text comes in, that is another separate issue in and of itself.
'04 GMC Sierra 2500HD, CCSB, D/A, MaxBrake, B&W Companion, Retrax Pro, AR Power Steps
2013 Rockwood 8289WS w/Diamond pkg
1969 Camaro RS/SS Convertible
Dad's old 1968 Empi Imp (recently recovered from under 21 years worth of boxes/dust)