Now we can see the inspecting instructions I take it back about being a clown.
That is not to bad although I would still say that the driving of road vehicles on the runway surface should be prohibited.
There is no requirement for it and nothing to be gain by doing it.
The tyres on an aircraft have a completely different load pattern from a car. So giving people the option of driving up and down the thing can only damage the surface for no useful demonstration of runway condition.
There is not much point of telling people to stop driving on it after the damage has been done by rutting.