I don't think you have much of a choice. Acting or sounding like a coyote wont do it. I've had deer around me and had coyotes yipping and howling close by. The only time deer, that were near me and in sight, bolted only upon sight of a coyote. I sometimes bump deer out when leaving, only to see them return by my trailcam pics and times.
never say never
patience is the companion of wisdom