It now appears that the delayed response to the snow removal was some sort of job action. Labor actions end when public safety is endangered. There were cases of people dying due to the inability of emergency responders to deliver timely first aid.
The Mayor has been a bit arrogant. The entire planet knows that Manhattan gets the lion's share of resources and it does not matter if one lives in Harlem or Tribecca. Denying the obvious does make the mayor look bad.
If it is indeed true that the delays were caused by illegal labor actions the Mayor should start termination proceedings and pass the liability issues directly to the union. If a wrongful death suit seeks redress the liability belongs solely and squarely upon the union and not the taxpayers of NYC. If the union is forced into bankruptcy, this is what they deserve.