lol when you have brake hold enabled and take off your seatbelt, brake hold is disabled but the electronic parking brake is engaged so that your car wont move lol you could have just pushed the brake and disabled the parking brake.
When you choose a destination you should see something like this:
You just have to click on "more routes"
You can see the different routes in a lighter shade of blue.
That's weird, I do it often and it always works. the only thing I can think of is on your phone go to settings > general > carplay > click on your car and check if "Alllow Carplay while locked" is on.
Ok then you can have the auto lock when you walk away. But it is not on by default when you get the car, you have to turn it on. Unfortunately I'm not near my car, but it is in settings. Give t a shot, if you can't figure it hit me up.
Holy crap thats bad! sorry to see that. I have a 16 Civic Sedan EX-T and it has never done anything this bad. Maybe sometimes some spills but not even enough to go down the hole.