I say wait too. Some will eat in shed, some wont. No point possibly wasting food if they refuse and a couple days wont hurt them. I only offer my snakes food in shed if for some reason I mess up and buy and kill a rat for my BP and then notice she's in shed. Hard to see in a high white pied unless you look close. She wont eat in shed but both of my BCI will eat in shed, out of shed, in their cage, out of their cage, both of them don't care where they are as long as the rat is coming