What can I do about the IRS form 1099-c as a co-signer on a vehicle loan?

Several years ago I co-signed an auto loan for my father who is disabled. The vehicle became a repo 2 years later. Last year, my father made a deal with the debt collection agency to pay 5k on the loan, and the rest be canceled. I filed my taxes last week. Today I got a form 1099-c in the mail for a cancellation of debt for an amount of over 11k. My father and mother are both disabled and they do not file taxes. Does this burden automatically fall on me since they do not file taxes? It should also be noted that I only got 1 copy of the 1099-c (the copy for my records), and no copies to file with tax returns. And as of yet, my father has not received a 1099-c at all. Also, since my taxes are already mailed off, where does that put me if it is my problem now?