I say go. If she's moving there, you'll soon see plenty of her anyway. But even if she wasn't, I'd still encourage you to go. As you mentioned, you'll be done by early afternoon. Suggest some things that she and her husband could do together in your absence. I bet they'd enjoy a morning together anyway.
And you go girl with the metric! I want a full report.
Live with intention. Walk to the edge. Listen hard. Practice wellness. Play with abandon. Laugh. Choose with no regret. Continue to learn. Appreciate your friends. Do what you love. Live as if this is all there is.
--Mary Anne Radmacher