It’s normal for a Cham to not want to eat for a day or two after a move. Read his body language. Once he is comfortable I’d try offering him food by hand. My Cham took two day’s before he was out of his cage crawling all over me and my apartment. But he came out on his terms. If he wants to come out by all means let him! If you leave him in his cage too long he will become territorial with it. Try putting a plant next to the opening of your cage to see if he will climb out on it. They enjoy exploring and it will get him comfortable coming out of his cage.