In winter its less safe when the potential of it seeing a shadow and slamming the brakes on ice or snow... Engineers overthink things and royally screw it up.
One company I interviewed with covered the bumper radar with foil on their fleet. When it gets covered with snow/ice a warning shows on dash that radar can't see but truck drives.
I think it did on the FL day cab, not a big loss just running 300-odd mils a night, and it would come back after the stuff melted. The other company with the foil has Macks, dunno what happens with them. Those trucks are brutally equipped, they not only have lots of chains, also sand tanks and drive wheel sanders since they run to Denver on I-70 no matter what. I doubt cruise is a concern with all the up and down they do.
