It's a completely different story in NYC. First, it may not have been CBP that was having major issues. Second, even if it was mostly a CBP issue you can require everything in the world, and if it is impossible for people to get in and impossible to get to those people to bring them in there is nothing you can do. Firing half your staff because they didn't show up for a storm in which half of the city's ambulances got stuck just isn't feasible. It's different in other areas because it's generally a case of emergency snow routes getting cleared and exempting "required" personnel from snow emergency rules. New York can be impossible in that scenario because it's so heavily dependent on transit and because in the case of this storm, the emergency routes weren't even getting cleared because of abandoned vehicles.

Oh, and if it wasn't CBP but rather PA or MTA or ground crew that screwed it up it will NEVER change. Unions own the NY state legislature and nothing regarding local government employees will change in the near future.

My suggestion is, next time NYC experiences a blizzard, Bloomberg should announce that abandoned vehicles won't be towed but carried by forklift or front-end loader and dumped in the east river. But then again, I'm an evil person