"ceramic" is a buzzword - most brake pads used in American/Japanese/Korean cars are non-asbestos organic. There's some ceramic content in the friction(read the MSDS from a friction supplier, you'll see things like feldspar, zinc oxide, kaolin and other minerals listed), but a majority of the pad will be composed of a resin, a mineral wool and a few other ingredients to modify the friction material. Most NAO pads use a mix of cashew and phenolic resin. All brake pads resins need to "cure" and offgas - Trav did bring up a good point - some pads don't take well to the break-in methods we use, that's for more performance-oriented pads.
I think Carquest/AAP pads are made by Raybestos or Rolounds/Bendix, check the FMSI edge codes against the AMECA list to see who made the pads in the first place. COO is telling but not the whole story.