Yup, after another look, I see the "Thank you for choosing Avis and participating in the Avis Free to Get Away promotion."
Now a question for those of you that got the certificates emailed to you: do your emailed codes no longer work? I had 2 to still use (that were set to expire in November) but just tried to make reservations with them and got the error "We´re sorry, the coupon number you are using for this reservation does not match the correct Wizard Number Profile. Please check to ensure that you have entered it correctly."