I have hot-refuelled by myself (locking controls) many times while carrying out remote area operations like; stream sampling etc. While part of the reason was to keep cylces down it was also used as a safety blanket just it case you had troubles starting again and you're stuck in the great ozzie outback with just you and your hand pump
I guess Arkaroola isn't that remote, but it's a ****** to walk around...
The Coyote.. your correct frictions are not lockable controls, good point.