addresses are not well defined in rural areas though someone created a polygon for this address almost 3 weeks ago.  TBH I think all rural deliveries should be charged extra because it's hard to find them since the buildings are so far apart (especially if they're hidden in woods), and may have to go through bad roads.  However this is not a problem with the map, it's a problem with the courier not knowing what to do when they can't find the address.  As far as I know, most address lookups are still through TIGER addresses and it's just a range on a road.