I have been in various Supervisor roles in jobs over the years and I feel you did the right thing. Perhaps there may have been an opportunity to approach this person one on one first to address the behavior, perhaps not. The reason I mention this at all is NOT to condone what the offender did or said, it is only to give a person a chance to fix the problem first on his own.

I have seen many situations in which someone did not even realize they were being offensive but thought they were being funny or clever. I have also seen people lose jobs or be permanently labelled in a negative light because of what was said or done. Sometimes I think these situations could have been avoided had someone approached that person instead of going straight to the top with the issue at hand.

If someone in authority at a workplace is told face to face "I am offended by what you said" or "I feel like you are creating a hostile work environment because of what you did", and chooses to continue the same pattern of behavior, then by all means they deserve to be fired or worse.

I may get skewered for saying all of this but I still feel it's the right way to handle this type of situation.