Because of some goofy laws in Florida AppleCare can't be sold over the phone (I know from experience). But it can be purchased in store or online at the apple store online.
As for the warranty issue, if you read it, it clearly states it's policies. I've copied the following directly from the warranty:
WARRANTY SERVICE OPTIONS
Apple will provide warranty service through one or more of the following options:
ℹ Carry-in service. You may return your Apple Product to an Apple Retail orAASP location offering carry-in service. Service will be performed at the location,or Apple Retail or an AASP may send your Apple Product to an Apple RepairService (“ARS”) location to be serviced. Once you are notified that service iscomplete, you will promptly retrieve the Apple Product from the Apple Retail orAASP location, or the Apple Product will be sent directly to your location fromthe ARS location.
(ii) Mail-in service. If Apple determines that your Apple Product is eligible formail-in service, Apple will send you prepaid waybills and if applicable, packagingmaterial, so that you may ship your Apple Product to an ARS or AASP location inaccordance with Apple’s instructions. Once service is complete, the ARS or AASPlocation will return the Apple Product to you. Apple will pay for shipping to andfrom your location if all instructions are followed.
(iii) Do-it-yourself (DIY) parts service. DIY parts service allows you to serviceyour own Apple Product. If DIY parts service is available in the circumstances,the following process will apply.