Thanks for all the suggestions...

Due to all your very helpful suggestions, (aside from the shot gun, although I would have tried that one had I the means. Thanks Uncle Jay!) I am now happy to report that the cookies have been delivered. We took them over to their door last night for Family Home Evening...unfortunately nobody answered so we didn't get the opportunity to talk with them face to face. So we just left the plate of cookies and a card explaining things and apologizing. Brad walked past an hour later and the cookies were gone, so let's hope that's a good sign! We'll see what happens from here.

Although, it has been very quiet on their end since I pounded back. :)