The impossible contest

From the Connecticut Best Business Guide, one of about a hundred coupon books we receive in the mail each month:

A simple word puzzle, right? Note the date in the top right corner:

Okay, all seems legit. But what's with the fine print at the bottom of the rules?

"All entries must be received no later than Dec. 15, 2008"? Hmmm. Good thing I have that time machine for just this purpose.