You say your hunting an area where there is inevitably human scent swirling around, but those molecules have dissipated and are less concentrated. I think scent elimination is the way to go. At the very least you're going to minimize the scent you produce, and possibly give the impression you're not in the area, and the off gasing the deer is smelling is somewhat normal. As for cover scents, only rut attractants!!!, and since most archery seasons aren't in the rut I wouln't recommend them.

A good cheap way to eliminate scent (I've been experimenting successfully for two years now) is to go the "devil" that is Walmart and buy Aquatech activated carbon for aquariums for about $3.50 for 4 oz., crush about 1/2 oz. of it as fine as possible, add 1/4 cup baking soda, all with a gallon of distilled H20. Let sit for an hour or so andstrainthrough a coffee filter 2-3 times. Put in spray bottle, and use when needed.
As evidence it works, last year I stalked in on 30 head of elk with swirling wind and stuck a young bull at 10 yards (he was the only one awake and standing and that wouldn't have changed if I hadn't shot him.)