AT&T at 10420 Twin Cities Road Suite 40, Galt, California.

Here's what the agent at this store told me: "I don't have to take this from you." The "this" was my showing him and joking about how broken and lame the mini-tablet that I got from that very store, for "free" (except the $10 month charge for wireless access). When I replied that he did "have to take this" since I was a paying customer, he told me that he had the right to refuse service. When I asked him if he was refusing to serve me he said no, he wasn't, which leaves open the question of exactly what he was going to do to follow up on not having to "take this". I never found out because my sister, who was with me and witness to this and who is the primary (20 years or so) at & t account holder, walked out.

Won't go back to this store in Galt (on Twin Cities, 2 miles from my house) again. Will cancel at & t as soon as I can. My sister is sort of trapped since she has multiple family members other than me on her account and it's just too complicated.