If I weren't riding the Tour du Port on that day, I would. There are other 'cross races fairly nearby, though. Watch for the one at Lily Pons near Buckeystown. That's a very fun place to see a race, what with the lily ponds and all. Depending on what day it is, I'd definitely meet up with you for it.
Edit: Damn. I just checked the Mid-Atlantic Cross calendar and I've already got plans for the day of Charm City Cross in Baltimore, which is an awesome race at which you can see a whole lot of the course from one spot. The Ed Sanders race (the one at Lily Pons) is Sunday, 9/28.