Ran into this problem this past week. Had a couple of does with fawns eating in my clover plot at dusk and they would not leave. I tried to wait them out but finally had to climb down and alert the deer to my location, not good. If I was hunting with a partner I would have had them drive the four wheeler to my stand but I was alone. What about setting up an electronic game call nearby set to coyote call or something to drive the deer away long enough to make my escape. Any ideas?