|mmm That's got to be a first... Ants in the pants maybe yes... but in a laptop...; a new one for me.|
They may allow a replacement - if it's still under warranty. Possibly your credit card company may also cover it if you used a credit card to purchase it? (Amex and some Visa cards offer one year coverage - within reason).
The store may at least offer to service/clean it; possibly for a modest fee?
You say it won't turn on now... Does it show any signs of life at all (apart from the ants...)?