I would say yes. Afaik you are not supposed to touch the phone while the engine is running. I assume it would come down to how zealous the officer seeing you do it is.I use Waze regularly on my phone which is mounted on my dashboard using a Spigen Stealth. I report incidents such as traffic and hazards often which does involve two or three button presses, would I be in trouble if the police saw me doing this?
I see so many people on phones every day it's ridiculous.