Although the Service Bulletin wasn't issued until Nov 20, the Download was sent to the dealer network on 10/23, a full month earlier. This info is on the second page of the Service Bulletin in Table 1. It states that ECM Cals done after 10/23 do not need to be upgraded. Perhaps my dealer was right.
For reference you can see a pdf of the Service Bulletin here:
http://www.box.net/public/qyad1e3t1n