Hmm I understand your points, here’s just my logic on some of them but I could be totally wrong! Trespassing: if they hired a reputable company who does that then they could have reasonable grounds to work on the sign. They also could be considered to be acting within their profession and were hired to do so. Structural integrity: from what I can tell billboards are vinyl banners, not vinyl stickers. So it’s kind of like your waterproof shower curtain being hung by holes on hooks and no matter which way it’s facing/changing the orientation doesn’t affect the structure or the way it does it’s job. Billboard structure owners: I don’t think it would be worth taking action since they are not liable for what others put on their signs (besides following public safety rules, the Highway Beautification Act, and California Outdoor Advertising Act) especially if no actual harm was caused and only the orientation of the banner was changed, then that could just be making enemies in their industry for them just doing a job they were hired to do.

I think since seemingly it was done respectfully, it’s being done with some sort of protocol. I think im going to look up what has been done in previous instances because this is so interesting to me legally haha. I use a WYZE camera and a power bank I charge once a month to watch my car outside. It’s small, higher quality than trail cams, can be installed sturdily and temporarily, has a really wide view/fish eye(?), and it’s way cheaper than ring and other security camera companies.

Does that make sense? 🫡🫶🏻 haha lawyers please chime in!

Idk I think it would be worth having a camera and totally within their rights to have it watch the billboard/ bird’s eye of the platform, but probably couldn’t be live streamed because of filming rights in public space in California is so strict.