OA Retreat

There is an OA Retreat in Virginia Beach in April.  I would like to go.  If I go as a daytripper, I can actually afford to go.  Virginia Beach is kind of far to drive to and from there in a single day.  That's 8 hours on the road.  I have a friend (not McStupid) in Norfolk.  I thought about asking her if I can stay with her, but I don't want anyone in my RL to know about OA.  It's not like I can say, "Can I come stay with you, so I can go to this conference that you're not allowed to know what it's for..."  I briefly (about 2 seconds) thought about saying it had something to do with Second Life, but then I'd be afraid that she'd decide to tag along.