Now that CompUSA is closing its doors, it has begun the process of tying up loose ends regarding issues like gift cards, rain checks, rebates and returns. In a nutshell, if you purchased anything from the store after December 12th you are pretty much S.O.L.
As for warranties and service, CompUSA has stated that all products currently being serviced in the tech shop will be completed and returned. All outstanding warranties will be a third-party provider, Assurant Solutions. Wow, going out of business during the holidays makes things easy on everyone doesn't it? Hit the link for the full details. [CompUSA via Crave]