Gotta bitch about this somewhere.... It's pretty fact-specific, but maybe others can relates.
I live in an unincorporated community (i.e., not a "city"), which means there are no local ordinances. However, there is a "community services district" that provides for trash pickup and street sweeping (and other things). In other places I've lived, there are street signs that indicate the "no parking" days and times for street sweeping. However, in my community, there are no such signs. Instead, there are "banners" that get put up at the entrances to the community. Supposedly, these banners get put up over the weekend prior to street sweeping days (which are supposedly the first and third Mondays of each month). There is otherwise no way to know when street sweeping day is.
In 2018, I took the entire week of Thanksgiving off, and I park in the street. Because I'm not usually home during the day on weekdays, it didn't occur to me to move my car and, sure enough, I got a ticket. I "appealed" it (via an online submission) and, not surprisingly, the appeal was rejected. It's "only" $45, so I'm just going to pay it and be done with it, but it pisses me off how this is set up to trap people.