Ha ha. When this game up in the Submissions, my wife went "look - someone did my idea!". She suggested that I have a light on on my front screen (I did a Battle of Britain game too) and and Air Raid Warden shouting to "Turn that bloody light off!".
Great idea and good representation of walking around at night. It needs expanding though - the first house I called on didn't give any choices in the dialogue and after that there were just two.
I think in reality nobody was exempt from the blackout regardless of their part in the war effort - so I intended to shut every light down regardless of their 'excuse'.