Earlier quoted context omitted.
You're probably coming off as an arrogant prick. Try something like "In order to write better tools and automation, I need to empathize with the people using the tools and experiencing day-to-day pain. Can we find somebody who is willing to let me watch over their shoulder for a few minutes on one day?" Note the implicit bargaining for small amounts of time and only small intrusion, as well as the understanding that…
Good advice, but the first line is completely unneeded. I don't think that assuming someone's manner of speaking to be off-putting based on a short, evidently intended as a summary, comment on a forum is a polite thing to do. Using this kind of thinking suggests that you're no less of a prick than the GP, which is obviously wrong... right?
There is a strange desire on this site to assume good faith. I have no idea where that comes from; nearly everybody is clearly posting with a heavy, thick personal bias. I suspect that folks only feel that they are arguing in good faith, and that their feelings blind them to their biases.