I'm in the same boat. Always have to press the "I agree all the shit throw at me". No way around this.
And I used to able to go into the secret maintenance screen. There is an over ride in there that allows you to use all function while in motion. But everything go back to normal when the car turn off.
Steps to go into this secret screen:
1) Turn on the head unit (either start the car or go into accessory only)
2) Press Menu
3) Volume (don't touch anything else)
4) Here is the secret part .... press top left corner > press bottom left corner > top left again > bottom left again
5) If you done step 4 correctly and if there is a secret maintenance screen this is when it pop up. The graphic is not as nice as all the normal screen. All the buttons are flat.
6) Press and Hold one of those button read "Override" or something like that.
7) Hold till you hear a beep, let go and you see the button stay darken.
8) press "BACK" until you get to regular screen.
9) Now you can enjoy everything while in motion.
Now for the sad part, I did the map update........ now I can't get to this maintenance screen anymore.

And what I was told, the grounding wire hack trick get waste too.
It's sad that the new "Upgrade" are actually "downgrade" like Apple and all their........ well....
Goodluck and live long and .........