Been to that rest area many times over the years and seen RV in the truck spots so I would say yes. But you could also probably also pull off on one of the many little exits in that area that look like there isn't a house for miles and just pull to the side of the road.
If you do stop at a rest area and your rig is short then park with the back of the trailer even with the back of the trucks. It's just a courtesy. But imagine the tired truck driver who comes in behind you and thinks your spot is open only to see it blocked by you after he has started the turn.