Another great little detail: all the girls had their hair tied with wool strands, because the silk or synthetic ribbons they might have used were unavailable for the same reason as the short ties. Also, notice the "A" gas rationing stickers in the windows of the parked cars.
Yes, you can clearly see the A rationing stamp on the windshield of Paulie's car when they murder him. But, when driving to the spot where he was murdered, they pass several metal cobra head light poles that were not in place back then. I guess the City wouldn't let them change everything.
