The city of San Francisco has opened a complaint and launched an investigation into the giant ‘X’ sign installed on top of Twitter HQ.
City officials say replacing letters or symbols on buildings, or erecting a sign on top of one, requires a permit for design and safety reasons.
— Kyle Griffin (@kylegriffin1) July 30, 2023
Source: https://www.buzzfeed.com/mjs538/elon-musks-x-sign