Update: Maverick that I am, & since my fridge temp is around 33 degrees, I didn't freeze the duck. I placed it all the way in the back on the lowest shelf, where items frequently do freeze - lol! My twisted logic was 1) sticking it in the freezer only to have to take it out a day later didn't seem to make much sense, & 2) at $7.00, if it didn't look &/or smell fresh as a daisy, I'd just toss it.
So - took it out & unwrapped it for roasting yesterday evening - AND - it was perfectly fine!! Gave it several good sniffs, & it frankly smelled like it had just been taken from a fresh meat case - better, in fact, than some chickens I've bought & used the same day! Roasted it in my rotisserie & served it with an orange sauce (canned Mandarin oranges, orange juice, honey, & Grand Marnier), buttered whole-wheat egg noodles, & buttered broccoli florets. Absolutely delicious & with enough duck leftover for a 2nd dinner. So - two meals per person for two people for $7.00. Whatta deal!
But anyway - thanks for all the advice. I'll keep it all in mind next time I come across a great fresh poultry deal!!