I love the version you quoted, though (and almost wish he'd said it to the USPS). It's a better quote, and I can't really blame Faulkner if he realized he could say in an interview something better than he did to the postal service.

It just made me tear my hair out at the Plain Dealer when I realized an author had said something different to me in Cleveland than he'd told my counterpart in Boston the week before. The most charitable version of what happened might be: The old cross-country author tours were could be so exhausting, some authors honestly couldn't remember what they'd said from one day to the next.