Trick:
Are you saying you ran MC into the KO at the back of the exit unit? I assume you connected the EGC in the MC to the grd connection within the exit unit, right?
Then based on what you said above.....open the exit unit so the AHJ can see the EGC connection within the device.
Or...does MEC 314.3 require a 'box' at each device (luminaire) location?
