When I used to work on an ambulance in a suburban area, we would sometimes go 'lights-only' at night so as not to wake residents. That might be tougher to do i

When I used to work on an ambulance in a suburban area, we would sometimes go 'lights-only' at night so as not to wake residents. That might be tougher to do in a city though, and it might not be allowed under some state laws.