Where can I park my coach near Asheville with electric

Unless you have something running in the coach. The house battery should not discharge in a month. Engine battery either. You would just disconnect it, and it should be fine.

In that case. Maybe you could find a storage lot, OR call one of the RV dealers in the area, and see if they would let you store it on their lot. Also "many" CG do have storage lots for a reasonable price. Much less than putting it on a campsite.