Google Ad Words question?

I've been running an ad campaign for an attorney in my town. Today, I went to get paid and wanted to show him that I had secured him top position on about 80 words. When I tried any of the words I knew came up first, his computer didn't show them. I then went to my college a CSU and typed them up and they came up first. I've been working really had to keep bids low but still keep on top, rather than just defaulting a high amount. Here's the thing, I told him that his network must be set to a different area or broader range, and I am specifying within about 60 miles of our town to stay out of competition with larger city law firms. Therefore if he's set to just California or a different town our ads wouldn't show. I called my website guy and he ran query's on the search and came up with us first position also. The attorney called the guy who set up his network and asked him to search, the guy reported back that his laptop didn't get any results, however his work computer (a large local hospital) showed them coming up first. He then stated that if his didn't come up and the cpu's in the attorney's office weren't coming up then maybe I was missing a loophole of potential clients. I told him that maybe since the guy who set up the network and his own laptop didn't work then perhaps the guy is a jerk off who incorrectly set the IP and is not a cpu expert or have a degree in cpu science, but neither do I. For whatever reason since his job title has nuclear in the name he is apparently a genius in this guys eyes. This guy is a nuclear medicine tech, and when the attorney described him he said he's a nuclear physicist or something, big difference. So, I called about 10 people I know from around town to run searches and all came up with our ads in first or second position. What should I tell the attorney, he wants me to research the industry to discount this guys claims, when I know the guy just screwed up and is covering. Any cpu experts out there have a good answer with terminology I can defend my work with. Thanks.