My issues are that it's not about how hard it is to teach, it's about the time/attention it takes to actually do the thing, and how predictable the path is. Because it's not even that short:

    - Identify if there's a dialog box showing.
      - If there is, dismiss it (sometimes tap outside it, sometimes click close, sometimes accept the prompt.
    - Then click the top level button, etc...

Once full self-driving is supported maybe it'll be less of an issue, but as long as I've got full control of the car, that represents at least 10 seconds of looking at the screen (hopefully broken up into chunks with glances at what's happening on the road).