It might come as a surprise, but postal workers actually get out of their vehicles and walk around. I live in the South Hills area, and I definitely understand why any postal worker would be nervous about walking on these sidewalks during the ice storm and slow thaw. Most neighbors do not clear the sidewalks in front of their homes, which subsequently become very slippery with packed ice. I'd rather wait a few days for my mail than have our hard-working mail carrier break his/her neck trying to get my magazine subscriptions delivered.