To work on the AC, the cooling system should not be touched. Actually it'* not close enough and had nothing to do with the AC system, unless they replaced your condenser. The condensor is the "radiator looking" part of the AC system in front of the radiator.
Being a 95, have you ever had any issues with your upper intake manifold or lower intake manifold gaskets?
I suspect that the car may start to run bad very soon if this is the upper intake failure.
In the future, please keep posts about the same subject together in one thread. It makes it much easier to follow.