Now that would be twisted.
Mrs Claus, perhaps still enthralled, stole his suit?
I suspect the suit she stole was not his. I suspect it may have belonged to the *ahem* judge, who, confused by the sudden appearance of Anti-Claus, threw his own suit into the mix, thereby mixing up said suits in a not-so-suitable manner.
She could have done it in retaliation for the accusations of whoever was squeezing Rudolph into the mixture.