They can Brumate/Aestivate for around 3 months IF they were well Fed prior to going into Aestivation. More than likely the new change in scenery has cause a slight bit of stress on both frogs and I will say this. when given enough substrate to completely cover themselves you can bet that they'll take full advantage of that.
Go ahead and uncover each frogs face so they can see when its time for you to feed. You'll need to check on them anyway to make sure they're ok and see if they want a snack. If they wake up and all is well just give them a warm soak and something to eat.
Keep us posted.