1. At a minimum, it is impossible for most people to get to work in the city, which affects the locus of several industries, including finance, advertising, healthcare and the arts. The city's transportation lines, bridges, and tunnels were shut down for nearly two days, and at the latest report, the subways may be down well into next week.
2. Never accept the job immediately. Say you need to think about it overnight. Once you sign on the dotted line there's no room for negotiation.