I saw 4 brand new heavy duty trucks in Vegas today. They looked like 06-07 sheet metal, chassis cabs: 1 standard, 2 quad, 1 crew. 2 were pulling horse trailers - no horses, hay, or any signs of cowboyism. Plus, the 2 trailer towers each had a big steel block on the flatbed, purely for adding weight. The 4-door had a crappy, old utility body. The other had a plain jane enclosed cargo trailer.
It was a funny group, these brand new trucks, all with yellow, matching rear mudflaps, and crappy old stuff either bolted or hitched to them, not to mention the dead weight. They were running together and running hard. I was looking for communication and measuring gear, but couldn't spot any. I see a lot of test vehicles, usually cladded, between here and Death Valley. These weren't disguised at all and didn't look like the suspected 09 style.