Hello, my name is Dan.
I will do my best to help you, the only stupid question is the unasked one.
That, unfortunately, is not covered under warranty. It is accidental damage, but Apple is quite reasonable for these types of repairs and is worth the 15 miles to have it looked at.
The screen is not real hard to replace and can be done in store. Turn around will most likely be no more than 2 days, maybe less.
I cannot tell you a price, there may be case and hinge damage also. It will take a hands on tech to tell you.
I do know that it will be reasonably priced.
Make a reservation at the Genius Bar before going, it will save waiting.
Apple Retail Store
Type in your zip code, find your store and click it, click on Hours and information.
Select Genius Bar and make a reservation, you will get an email to confirm and you are set.
Hope this helped.