Hence the "stupidly embarrassing" bit. All the more mad at myself because I knew better -- the old "hands on the steering wheel" rule (although in that case I

Hence the "stupidly embarrassing" bit. All the more mad at myself because I knew better -- the old "hands on the steering wheel" rule (although in that case I wasn't driving). Not sure if preemptively rolling the window down would make them nervous; I'd tend not to do that. I'd think leaving the engine on would make them nervous, too.