That's a hard one. I have had this happen before and so have most hunters/friends I know. One thing for sure, I wait until dark. After that, I have done just what you did. I make a few noises (subtle). One thing that worked was I crabed a branch from the tree and dropped it. It sounded natural, but at the same time, it was enough to move them out. Creep out of the stand and make your way back. If you know where they went, take a different path around them to get back to the truck. Bottom liine is, deer are aware of everything and they can see pretty well at night form what I have read, so all you can do is be patient. Two doe won't spoil your stand at the end of the day though. Plenty of deer won't see you leave and will be back around.