Hey there Brad!
I found that with almost all discus that I've received (from Kenny or otherwise) are always skittish for the first few weeks of arriving. Whether it is due to stress from shipment or just getting used to their new surroundings, they have always somewhat "spooked" when approaching the tank. I found the best way to acclimate them to movement outside the tank is to approach slowly for the first few weeks and they'll eventually get used to it.
I say resume maintenance immediately. When I first got mine original group from Kenny, I was doing daily WCs for the first week and, while they did get spooked a little, the maintenance was important to their health. They do eventually get used to it.