I had an occassion where the highest bidder lived in a house on my way home from work, so I asked them if ok, I would drop off and refund them the post, I delivered the item to their door (no-one home) and by the time I got home, I had an email from buyer saying he had just gotten home, and how delighted he was with delivery and items and to keep the postage.  It can work out if you approach the buyer and they agree.