So I guess the conclusions here are that:
1. I shouldn't worry about it. It will go away.
2. I should get gas before the light comes on.
It reminds me of when I was a little kid. I would fall and scrape my knees. Later, I would hit them on something by accident and say, "Ouch, that hurts." And my parent's would say, "Well if that hurts, don't do it."
So I guess I could hope it goes away or never let the tank get below 1/4 tank, but the problem would still exist.