“Thanks. But I was specifically looking for an incident of sacrifice at an altar (tabernacle, temple, etc.)”
The word “pardon” in the King James necessitates an atonement being made for the forgiveness (cf Lev, 4:20 ff).
I think if he was only going through the motions and not really worshipping he would not be asking for forgiveness. Any hypocrisy in the pagan worship would soon be found out in the rituals.
All well and good. But it still didn't involve an offering (Elisha was, as far as I recall, not a Levite).