I managed to get a CD stuck in my MBP.
What had actually happened (the Apple tech said), was that a brand new CD from a stack of new ones, had a thin plastic sheet attached to it (it was the last one of a previous stack).
Of course, I didn't notice and once in, it wouldn't come out.
I took it to my nearest Apple store which was 20 miles away. They took it into their workshop and released it for me. They didn't charge me anything at all. Now THAT was due to me. I'm sure, if you explain what happened they may well be very understanding. You are not necessarily going to get a big bill - obviously depends where you are geographically (I'm in UK).