The instructions were to call or check the web site over the weekend to see when my group number would be needed. When I checked on Saturday the site said that my group would not need to go in on Monday morning, but should call or check at 11:30 to see if we'd need to go in at 1pm. I checked a little early, and here are the new instructions for my group:
Your group is not needed. Your service is complete. You do not need to check back. Thank you for making yourself available to serve as a juror.Not complaining!