Same thing happened on my 97 accord - the repair guy pulled apart the
plug that turns on the AC compressor - actually it causes the clutch to
engage thus spinning the compressor.  Simple to see if the compressor
is turning - open the hood with the motor running and ac off - look at
the center of the ac compressor and see if that thing is spinning - it
won't be with the ac off.  Then turn the ac on and look again - if it
is not spinning - then the clutch is not engaging.

If the above - trace the wire from the ac and on mine it went to near
the side of the radiator into a connection and it was that connection
that the mechanic did not get put back together.  Hope that is all - at
first I thought his grunting and tugging lost a load of gas.  The pig
also stole one of my maps - will have a bigger garage in my new house
and will be able to avoid guys like that for simple repairs - oh it
took 3 different radiators before we found one that would not leak -
Bumper to Bumper Hecho in Mexico.  Oh they used the old drain plug - it
leaked - had to go buy a new one.  $375 or so but the dealer wanted
over $600.

Let us know what u find - hope it is a simple electrical connection not
being made.