But I was mostly curious what happens when you hit 0%. I did not drive after 0% though.
Well today I did. Everything went as you described, until 0% 0 miles. At that point I was 3 miles from home. After another mile it told me to pull over in a safe spot because it was powering down. The pleasant warning bell did nothing to allay my panic. Well, it let me creep home at 20mph (I think the max would have been 25). So now I know that I have at least three miles after it hits 0 (at 56F and no hills) though I wouldn't want to push it any further.