I think I would have left much sooner if I were there. Iran has claimed this January to have tested a 10,000 km ICBM with Russia allowing it to fly towards Siberia. This puts NYC and East Coast possibly within range. The claim has not been verified, but given the vitriol between the US and Iran, if they have it, and we overwhelm them with naval and air force presence, we may provoke a real world test of their claim.
What would targeting NYC help Iran? Aren't there more interesting targets they could go for which would take advantage of the inflamed political situation in the US?
I think it's much more likely that they would strike back at a regional ally if anything. Keeping some of their cards hidden and not risking a unifying shock to the US populace