Err... the pilot?
The cyclic can be secured when not in use via a swiveling bar that lifts up from the front of the stick and hooks into a pin just under the panel. The bar actually comes up quite prominently between your legs when locked but I suppose it could use some added visual cues like, maybe, a rotating beacon or something.
They were in quite a dicey spot for this to happen -a rooftop pad. Had they slid backwards only a few more feet they would have gone over the side. I'm just relieved that they are all okay.