Pause route feature
Being able to pause the directions would be really nice. On a long drive on a highway I might turn onto a rest stop or to get some gas. Hypotheticalically I might even want to stop to see a giant ball of twine. It would be really nice if I could stop the GPS from freaking out about the wrong turn.
I generally don't need the GPS to go to the rest stop or to find the gas station, and I don't want a notification to take a break.
However, being able to pause my directions would be nice as I'm not always in a situation where typing the address in would be convenient, and sometimes when I reroute an entirely different highway is suggested.