5/10 Borgata NL Rule Question

[poker327]

I think I am turning into a nit...

There was a 3 way split pot during a 5/10 NL game at the Borgata. The dealer who is probably the best one in the room proceeded to split up a $5 chip into singles. I shouted out, whites ($1 chips) don't play, so he shouldn't split the $5 chip. He insisted that I was wrong, that the whites don't play, but that does not have anything to do with chopping up a pot. Am I wrong?