I can see it now:
"Boss, you have a text message," the cellphone reads aloud.
*tugs the paddle* AUTO MODE ACTIVATED
The text reads: "Hey Hon, how's your day?"
The driver responds (by voice input, because he/she is too lazy to type): "Lolz, I'm totes driving right now. What are you wearing? Smiley Face."
*Ok, the driver thinks, time to resume driving. Deactivate auto mode.*
"Boss, you have a text message," the cellphone reads aloud.
repeat the above.