With the heat, during the rut hunt, I'd cape it off long before it found it's way to my truck. Way too many guys lose capes to the heat even when they get back to town a day later.
You've got over 2 weeks until the hunt. Get hooked up with a good skinner and learn it now. Elk are big and one of the easiest to rough-cape off the neck and head. Most will tell you to keep it cool, dry and unsalted until you can get it to the taxidermist. Don't use plastic bags since they hold the moisture and heat.
I'd even help you out if we score before you do. Otherwise, we'll still be on the mountain.
Good luck,
Zeke