I saw this Skydeck today at the Northbound rest area between Tucson and Phoenix. It is all dressed up by Coors for the NFL. It must be headed to the Super Bowl in Glendale.
I had seen it several hours area in the same spot when I was going south. No one around and the doors we locked. It looks like the trailer it was towing lost a wheel with the break drum attached. It was on a jack with the spindle and inside bearing.
From what I could see the inside was all NFL and Coors as well. The pictures are from my phone.