Thanks for figuring all this out Mike, I just tried to book using the link provided at the Towne Place Suites and noticed it only allowed me to book Friday and Saturday nights, checking out on Sunday. I called to add Sunday night, so I can check out Monday... then start the long drive back to Minnesota Monday morning as opposed to late Sunday afternoon, after the PUB activities.
They wouldn't extend the group rate for Sunday night. I had to book Sunday night at their 'lowest available rate'... I'm a AAA member, so it ended up being $132.
Looking forward to the weekend, meeting some group members face to face, seeing their cars and enjoying the road trip both ways!