[G-awesome]

So I was replacing bolts in the engine bay yesterday with the z-spec dress up kit and I accidentally unbolted a pressurized hose coming out from the radiator to the engine (see pic below). I was able to bolt the sucker back on but it slowly leaked pressurized air (or gas?) out until it slowed down and stopped. Anyone know what I did and if I mucked something up with the ac system?

I'm not a expert with the workings of radiator/ac system. The car drove fine this morning with no CEL but I was testing the ac system on the way to work and it seems like the ac doesn't really blow cold air anymore? Not sure if I let out some gas coolant to chill the air on the ac system.