2005 Chevy Silverado 2005 Chevy Silverado Crew Cab A/C

This weekend I had my car detailed, when I drove it in I had the A/C on but when I drove out the A/C no longer would blow. The lights all work on the instrument panel but when I turn it on nothing happens. The heater has the same issue, I looked at my fuse panel in the engine compartment and none are blown, I also checked my belts and they both are there. So what could it be? Why would it not blow at all? If I change it from cold to hot I can sorta tell the difference in temp but that’s it. Any help would be appreciated.