Just don't move much while you are hunting from that stand, they won't bother you much


LOL
Seriously, I think if it was me...I'd get all covered up in carhart's and a facemask and climb up there with a pillow case and cover it up and close off the top (quickly, I might add). Make sure to do it when it's dark or almost dark to lessen the chance of the bees coming out. Thats about the only thing I can think might work.
Oh, and make sure not to fall out of the tree while you are doing this!
So I'm wishing you good luck, or if you don't get it down....sorry, but your screwed! [8D]