Ain’t it great when someone that has absolutely no idea what your doing ignorantly criticizes your work?
I had similar experiences helping folks in my dept with IT crap. When it happened to me I did what you did......walked off.....and it was a cold day before they got my assistance again.
This was back in the 90’s in the days of pagers and the lady was a division secretary and somehow she’d get ahold of our pager numbers and would page you a 1/2 dozen times a day. There was a span of time where I and several of my co-workers had swapped out our pagers 6-7 times in a 3 month period until her management team reeled her in because we just stopped responding to calls.