Style,
Regardless of the legalities in your home state, once you cross into a traditional "free state"" you are legal to OC here anywhere we do. Why don't you wait until there is an OC dinner somewhere in the NOVA area and show up. You'll definitely feel more comfortable in the presence of a dozen local OCers, and you can first enjoy a special freedom while in the company of some regulars.
I know a couple of young guys who were under 21 when they started here, and they all say it is pretty exhilarating at first!
:monkey
