I have a 2012 cross roads classic le as well! Unfortunately mine is in the shop right now to replace a porous casting. Hope to get it back soon. I'm worried about it. My dealer is great and I trust my mechanic... But I want her back!!
Never fogged cylinders before but I hear it is a good idea.
Change oil & filter
Fill the tank with fuel and some stabil
Run the engine for a while to let some into the fuel lines and such.
Put 4-5lbs extra air in tires.
Clean and wax
Cover with a sheet.