I've heard of the exact same thing regarding white shirts playing out elsewhere, I think it was the policy made up by the crotchety old PO at the time.
In some congregations in west texas there were some near-rebellions when a CO insisted that cowboy boots were inappropriate for a speaker. The culture there is such that in many cases a man's boots are, by far, the most expensive shoes (and indeed article of clothing) that he owns and they are thus considered formal wear. In comes a CO from another area and he wants to make up rules to suit his sensibilities...
I had a friend of a friend that got DFed for fornication in his 30s (even though he'd married the girl he had sex with, and she was only privately reproved) because he'd been reproved for fornication a couple times in his late teens/early 20s and the BOE had a 3-strikes rule. Therefore, regardless of his repentance (he absolutely was) he got the boot.
I remember lots of rules about service time and privileges - in various congregations I was in, there were limits of somewhere between 6-10 hours a month required to have any "privileges" including carrying a mic.
I was once told that because I didn't comment often enough at meetings I wouldn't be allowed to read the watchtower because "people might be like 'oh, who is he?' when [I] get up to read." I was told at the same time that my wife would also need to comment more for me to get to read the watchtower at a meeting.
There was once a local needs talk given because an elder got wind of a group (ages ranging from 25 to 33) that went to a twilight movie. Apparently there is no such thing as a "good" vampire, and any fictional depiction of a vampire is to be avoided at all costs.
My mother was once told not to wear a pair of earrings (they were small, hardly noticeable pendants with a sun, crescent moon and a star) because they might stumble someone.
I'm sure there's more. Basically whatever the most pious asshole on the BOE deems to be wrong - that gets banned. Sometimes it becomes a race to the bottom as each elder tries to outdo the others to prove how righteous they are by finding fault and restricting even the most minor things.