Q: Is business casual acceptable?
A: Anything is acceptable. leisure suits, belly dance costumes, grass skirts, a t-shirt with the word "tux" sharpied on it.  Click on the links below for ideas.
Q: Can I wear heels or nice shoes?
A: I would not.  There won't be much shiggy, but I can't make guarantees about comfort of cleanliness.  I'd keep a pair in a dry bag or in your purse/murse (Or we can take them to the end for dancing!).
Q: What if we are late?
A: My current answer is "don't be late."

This is an event for anyone who wants to dress to the nines, dress their craziest, or somewhere in between.  Examples: tuxes, suits, ballgowns, old 80's prom dresses, old bridesmaid dresses, old wedding dresses, formal wear kilts, someone dressed like prom-night Carrie, your Goodwill finest find, fancy cocktail dress, red dress, etc...