Well, if it is against your lease you probably shouldn't have gotten them in the first place or you should have found a reptile friendly apartment. If they do find the animals they have every right to evict you, and I am sure that having snakes is not worth getting evicted over.
Honestly though, if they are just inspecting windows and doors, they aren't going to be looking for the animals. I would say you could put a sheet over the rack and a vase with flowers on top and they would never know the difference. If they aren't looking for it, they won't find it.