[Richard]

First, get a spotter or two. If the rear tires spin, stop immediately! They will dig a hole in a second. Then you are committed to a tow. You can't tell the tires are spinning from the drivers seat.

You might see if you can find some carpet to put in front of the drive tires. Or if you can get to a home store, rip a sheet of OSB in half and use that under the drive tires. Or corrugated board, anything to spread the load of the tires on the ground.

Go straight for as long as possible and don't turn the fronts until you have to. Looks like you may have to turn to get onto the paved road from the picture. Don't make the slightest turn with the fronts until the coach is moving forward. Once you get the drives on pavement you can jockey back staying on the pavement with the drives in order to complete the turn.

DO NOT rock the coach like a car. It will be on the frame before you know it.

Wait as long as you can to let the ground dry out.