Please do research on this site for husbandry. Petsmart has given you some false info. Also go buy a CB snake from a breeder. You don't want a wild caught animal they can have all kinds of internal parasites, mites, ticks ect. You will save yourself money and a lot of heart ache buying from a breeder. There are people here that breed and sell their own, also check out BHB, or royal constrictor designs. Those are just a couple there are a ton of good breeders out there.
Side note- bps do NOT require any special lighting. Don't let the big box stores talk you into spending more money.