I can’t find the article I’m looking for, but I love the story of the older Aussie woman artist who decided to make a social commentary about how women of this age are frequently invisible by illegally putting up great big posters of her artwork in public places (in Ballarat and Bendigo I think). She would turn up in a hi vis vest and just put up her posters on public infrastructure without a permit and nobody ever stopped her or asked any questions. She got away with it for ages as I recall.