I have not hunted promontory, but familiar with the area. I used to do a lot of duck hunting around the bear river area and ride a lot of motorcycles all over the desert. Stick to a spot with some elevated terrain and and pick a couple spots that gives you plenty of visibility. Coyotes are pretty wary and will often use cover to move.
I also liked to hunt with a buddy who could do a "drop and roll" - we would drive along, get your gear in hand, make a quick stop and get out and he would roll on in the truck to another stand. As you know, out in the desert there's not much to stop sound and when you park and shut doors and then get ready, you are all ready busted. Sometimes you can divert their attention distracting them with a normal passing vehicle.