You could hedge this if you wanted to. For instance you could take Pats in the pool and Jets +2.5 for any amount you wanted to hedge say $500. This way if Pats win you get the pool or half of the pool. If the Jets win you get the $500 from the wager (minus the vig) and if Pats win but don't cover you win the wager and 1/2 or whole pool.
Or you could just hedge with a money line but then no chance of a double dipper.
Just a thought.