Awesome little guy
I just got a new little pastel and I waited about 4 days after she came home to feed her, and she was hungry! She took 2 hoppers right away. I think it just depends on the snake, but there is no harm in trying. If he doesnt take it just wait a few more days and try again, if hes hungry he should eat.
Good Luck
Also mine didnt like me very much at first either but I held her frequently for small amounts of time and shes really coming around!