I doubt something so minor could be a reason for blacklisting you.
The only thing I'd advise is to avoid that shop, the area near the shop and if you're particularly concerned, the town or city where you rented the bike from.
Same in Taipei. Already people are being asked to have their account balances updated on the day they apply. When I applied, having a balance or statement from 1 week ago was fine (although I think I brought along an updated balance from either the previous day or 2 days prior) but this was not requested.
Savannakhet is developing a pretty bad reputation these days. It used to be the "go to" place, especially for multiple entry marriage visas, but in the space of a few months, they went from not requiring financials (the status quo that had been in effect for many years), to requiring financials but deposited recently being OK, to requiring them to be deposited in a Thai account for 2 months prior to application. This all happened between late October 2023 and early 2024.
They're proving to be tough as nails for the DTV as well, requesting lengthy periods of funds being banked, notarized documents and a whole list of other things.
Surprised they didn't need residency certificates. Most Thai entities, even the department of land transport, which issues driver's licenses, requires a certificate of residency to renew a driver's license. They don't recognize the addresses printed on the back of licenses they issued.