Then I'm going to take my $1.00 refund from those orange-roofed fraudsters

Is the envelope's return address Pennsylvania Avenue?[}:)]

[8D]

No, I sent my demand to 2601 Virginia Ave, NW (across the street from the Watergate and infamous for renting rooms to Nixon's Plumber's Unit).
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The envelope came back "Addressee Unknown"; it seems that the former landmark is now a residence hall for students matriculating at George Washington University.[:(]

Did Duncan Hines ever stay there?