Well guys, lucky news. I tried feeding him again larger rat today and he ate. However, he refused the prey in a separate enclosure so I moved him back to his original enclosure and offered him the rat. He seemed interested but didn't strike so I started to become desperate that he wouldn't eat again. However, after some moments of shaking and moving with the rat he struck and ate it all. Now he rests in his cold side hide but I hope that he will move to the hot side so that he has no problems digesting. We'll see.
What concerns me next is that due to the reason I fed him in his original enclosure, a small pieces of cypress mulch got on the rats fur and he ate it all. Should I be worried that something might happen to my BP or is it OK?