Spilled coffee on my laptop, took it apart, dryed it, but...

So I spilled coffee on my laptop last night. Which apparently a lot of people do (yay google!)

The computer was working fine last night (the mouse was a little weird at first but once dry it was fine) and I kept it off and turned it upside down for the rest of the night. However, when I tried to turn it on this morning, it didn't work.

After following some advice on here and other places, my friends and I took off the back cover (I have the unibody one) and used compressed air to dry out the inside. We didn't take the battery out (there's a "warning do not remove battery" sign) but we saw a lot of coffee spots so we tried to clean those up.

Unfortunately, the side that the coffee spilled on was the side with the processor (sorry if I'm spelling that wrong). The battery is working fine (we tried charging it and the light came on and everything) but the computer itself wont turn on. I unplugged the charger, closed it, and let it sit for a while but I'm not sure what to do!!

Just adding, I'm a college student with no money whatsoever. I did buy an extended warranty, but I think that went out the door when I spilled coffee on it so I just went ahead and opened it up myself anyway. I just would REALLY like to avoid having to go to the apple store for help.

Considering that I already opened it and there's still coffee residue on the sides, do you think it might still be worth it to give the warranty a shot and try calling apple?

Also, is there a specific way that I can clean the laptop so that nothing corrodes and decreases the life span?