Leave him alone. I remember reading about your post where your wife was bitten. Just let him chill and settle down on HIS terms. Five days is nothing. Some settles down faster than others but 1 week is usually recommended. Do not try to feed again. Wait another week. Spot clean his cage and let him be.
If he was eating mice before, you should stay with that for now. Your snake may not recognize it. Or, if you are feeding f/t, it needs to be warm enough. Either way, let him be for another week and try again, preferably mice until he starts eating, then make the switch later.
He may be using the warm side when you are not around. As long as your temps are fine, he will be fine. I have a king that stays on the cold side almost all the time. But I had caught her moving to the warm side now and then so they do it when they want to.
Husbandry issues may also contribute to not eating. But to me, it sounds like more than likely it is the stress of being in a new home since it did bite your wife out of fear recently.