Any ADZ, outside its territorial waters, is nobodies airspace.
There are two recognised lawful treaties which apply to those countries that have ratified them.
As NaGaStan has not ratified UNCLOS, it is not and cannot utilize the protections of it.
The Paris Convention.
The Paris Convention of 1919 sought to determine this question as part of the process of framing the convention's assumptions, and it was decided that each nation has absolute sovereignty over the airspace overlying its territories and waters
and
UNCLOS
1. The sovereignty of a coastal State extends, beyond its land territory and internal waters and, in the case of an archipelagic State, its archipelagic waters, to an adjacent belt of sea, described as the territorial sea.
2. This sovereignty extends to the air space over the territorial sea as well as to its bed and subsoil.
3. The sovereignty over the territorial sea is exercised subject to this Convention and to other rules of international law.
LIMTS OF THE TERRITORIAL SEA
Bredth of the territorial sea
Every State has the right to establish the breadth of its territorial sea up to a limit not exceeding 12 nautical miles, measured from baselines determined in accordance with this Convention