As for my case, due to mailroom errors and delays, I got my fingerprint notice a day after my fingerprint appointment on the notice.
Being a resident of Boston, I just went to the local ASC and confessed everything honestly to them and they said I would be just fine and they finerprinted me. Know something, I did not even the original fingerprint notice, I just had a photocopy of it and being well aware of all that, they fingerprinted me just fine. So dont worry, just go to your local ASC at the earliest.