I have some reservations about the article. It may be slightly out of date.
Up through 2010 the best place to stay (assuming you had a toad) was "the bend." BLM land, dry camping, but just outside the Salt Flats (I forget the name of the offramp, but basically, you got off I-80, went north past the gas station, and the road took a "bend" to the west into the salt flats -- you parked in there and it was just a quick drive the rest of the way.
However, in 2011 they did not allow overnighting in the bend and everyone had to stay in the parking lots at the casinos or in nearby campgrounds. For me, that's somewhat sad since the bend was a great area.
If you should decide to drive your coach out onto the salt flats I can assure you that you'll spend hours blasting all the salt out. It will build up in every nook and cranny under your coach. I really wouldn't recommend it.
The Green Machine -- 2000 Mountain High Coachworks Summit (Spartan chassis / Cummins ISC)
...and F-Troop: Fearghus, Fiona, and Frankie (Cairn Terriers)