Take it back to your mechanic and have them check the brakes. If the mechanic agrees then have your mechanic fix them and then finish your inspection. If your mechanic says they are fine ask them to note that on the receipt along with any measurements that took of the pads (most will just eyeball the pads and say "you are probably good for another year" but in this case, I would ask them for measurements if they think they are ok. Then take that back to the inspection place. If they still don't let you pass for the breaks, you can initiate a challenge inspection with the state.