I am aware that there are special requirements that a dealer must have in place in order to service a vehicle. Chances are if your dealer can service a Corvette ZR1, then they'll be able to meet the needs of a ZL1 Camaro.
There are also special instructions for these vehicles, such as the removal of the spring spacers post-delivery, or how to properly remove the belly pan to change the oil. Dealers should have their techs up-to-date well before the cars arrive.
Beyond that...I'm not sure they need to go to "ZL1 school" before they can touch the car...
