Yeah, I saw them there late yesterday afternoon and figured they'd gotten bogged.
I had to have a little chuckle though, because it reminded me of a new years eve many years ago when one small courier truck went into the radar field (when it was still accessible) and got bogged in the soft stuff. He called a work mate who brought his truck. Well he drove into the grass on the way to the first truck, but stopped about 20m short....bogged.
So the two of them called in a third truck. You can guess the story from here. That's right, 3 trucks bogged.
So, a fourth truck was called in, but this last guy had some brains and parked on the asphalt, got out some chain and one by one pulled them all out.