How to Decline a Party Invite Nicely

What would Champagne do when she gets an invite to a loft party from the nice Italian restaurant owner of which place she happens to be dining at?
1) Say, no because she has to get up early to go snowboarding in crappy April snow?
2) Flirt shamelessly with her server?
3) Insinuate that the loft party is going to be a coke-fest?
4) Leaves to go to the dive bar across the street, so that she can listen to god-awful punk rock metal and drink Pabst?
5) All of the above?
Yeah, after choosing to do all of the above, I got my tab and found out he had bought me 3 of my 4 glasses of wines which is more than the price of my meal + 1 glass of wine. I felt bad, but I had plans.
Very important plans to contemplate shaving some dude. -->
I try to keep an open mind about some things, but when you combine metal and punk together, it has the same effect as a bad case of vertigo and creates vomit. Sometimes, I just have to admit to being a bit of a curmudgeon.