My buddy says hurricane sandy is an exception to the broken window fallacy because...

There’s a thread on this not too far down the page. Conveniently, the OP makes basically the same argument, though considerably more detailed and not event-specific:

https://forum.freecapitalists.org/t/the-broken-window-fallacy-does-not-always-hold-true-debate-case/25345

In short, your buddy is wrong. There may well be a wealth transfer from rich people to the workers, however that is not an exception to the fallacy.