I am not sure what you mean by shuttle lot. If you are camping at Mary E. Ilium, then you park your car on the road that leads to the campground. You don't have to pay any extra for the parking. It is the same at the other campgrounds as far as I know. If you are not camping at a campground run by Planet Bluegrass, then you would probably have to find a spot in Mountain Village and take the Gondola down to Telluride. I am not sure if there is a cost for day parking at the garage in Mountain Village.
Listening to:
Disappear - My Brightest Diamond