I should have mentioned I want to pay cash for the bitcoins. I went to the bitinstant website, and it lead me right back to cashpayment.com, which is on their list of agents. What I don't get is why cashpayment.com would list all these locations and none of the ones I contacted knew anything about cashpayment.com or bitcoins. This is either gross incompetence, or I'm using the wrong language. I emailed bitinstant and mentioned the problem, so perhaps they'll answer me and give me a solution.
Walmart was one of the locations listed at cashpayment.com, and they were also mentioned on a different website that also referenced bitinstant.com as the service that made the Walmart connection possible.
I also looked at localbitcoins.com, but the only really close person had a $1000 minimum. And there were only five persons/businesses listed in my area, a very large city. There were a few with $20 minimums, but they weren't very close.
Walmart would be perfect, if only I knew how to get them to admit they were really a bitcoin location.