many times a code (or codes) can be triggered for many false reasons, a hickup in the system, a missreading setting off an event, etc.
Most CEL's reset based on certain creiteria and even severity. Usually they reset based on things like miles driven, restarts, closed cycles, etc. Sounds like there was only a single event that triggured them and that the reset cycles have completed with no other issues resetting the light.
Since those cels were so random and you are not experienceing any issues I would not worry. I have had my CEL come on and after a couple restarts it went away. Jeep has a pretty chitty ECU in my opinion. seems pretty common for it to bug out.
I would place my money on a false event that triggured all those codes. I would also be willing to bet that if you could see the operating parameters from the event that triggured it, that they would all have happened at the same time even though they are unrelated.
With that said, even though I feel it was a missreading, I would still recommend stopping by a autoparts store and getting the actual codes and flash data that includes the operating conditions when they triggured and I might be able to add more. I would say if you are not experiencing any issues with your rig and the CELs do not relight then F#ck the dealership. However, that is just me, I do not always play it safe so do not sue me if I am wrong, lol /disclaimer