Actually, that doesn't answer the question. I probably should've mentioned this, but the tank was at least half empty, probably nearly empty. I put 8.5 gallons in (18 gallon tank, right?) before I stopped filling (gas is too damned expensive), so the tank was definately not full to begin with.
That TSB talks about how the needle will correct itself after a few minutes. My needle didn't. I had the car out 15-20 minutes and the needle was constantly jumping all over. It never stayed on any given spot for more than 15 seconds.