The car has been sitting at the shop for several days now. Today the young man I've been working with there told me that the part (fuel line) is on "national back-order," whatever that means! I pushed him for an estimated completion date, and he said that the part would probably ship this week, so the work should be done next week. You might notice that "estimated," "probably," and "should be" are operative words in that sentence. I'm not holding my breath.
I'm happy that the insurance company is paying 80% of my rental car charges, but even my 20% is steadily accumulating!