Quote Originally Posted by davedove
Actually, considering the event, there is likely to be many others dressed similarly and you will just be one of many. The police will likely ignore you since they have more important things on their minds.
This would be my response as well.

A friend offered this advice for a similar situation: carry a stamped addressed box/envelope that it would fit so you can post it back to yourself if there's an issue. Usually that satisfies the authorities.