Some tunnels where I live explicitly instruct you to adjust your AC before entering.
I'm allowed to adjust anything within arms reach as long as I keep my eyes on the road.
It is my responsibility to familiarize myself with the controls before departing so I can do so.
This was my take too, except I'd send the trolley to the integer track, where it would use infinite time to reach the first victim, thus the trolley never kills anyone. Problem solved.
Them dying to exposure is outside the scope of this task. :)
Nazis and tankies are both totalitarian - people just seem to have forgotten the term.