I have a friend who can't make it, and a sorry 2 other people who were gonna ride up with her.
They now have a ticket and extra space in their car.
I believe they are planning on stopping half way at a motel or something to break the trip up.
anyway, they would probably be willing to part with it without the ride.
I don't believe they are interested in meeting people in SF at all tho.
They might be open to meeting people on the route, however... i dunno.
i might be interested. check your pm's