Do you have lab animals at work? If so, do you have tranq darts? We'll need them. I can't imagine you and Sheila not being at each other's throat having to be in the same car together for nine hours. Aside from my preference for leaving Monday instead of Sunday, all seems fine to me. I get out of work at 8:00 AM on Friday morning. We can leave immediately after that.
And I'm bringing my Union soldier hat