I drove the short northbound VA 403, on my way home from the Outer Banks. It might be unsigned. The signs in both directions on VA 165, and eastbound on US 58, don't mention VA 403, but instead use To I-264/To I-64. Could've missed signage on southbound VA 403, or westbound US 58, or on I-264 (looked in those places on GMSV, didn't see any, imagery is usually several years old).
VA 168 has a waypoint for VA 404, but there's no VA 404 in the HB, nor did I see any signage for it (but I didn't leave VA 168 to look for it). Suggest renaming or deleting the unused VA404 point on VA 168.