During any emergency there is no requirement for noise abatement. The pilots have enough to worry about without worrying about which Governor they just woke up. Now I can see if the pilot botched the approach and flew down the runway to far and had to go around his\her airline getting fined.
Also, even if an airport is closed to a particular aircraft type because it is too noisy they still have to lend a hand and let it land if the pilot has declared an emergency. Imagine the press….. “Well they crashed into downtown trying to make an alternate airport as they were to noisy to land at the one closest to them…….”