"displaying threatening or abusive writing, or a sign or visible representation likely to cause harassment, alarm, or distress."
https://www.theguardian.com/uk-news/2025/jan/29/chester-woman-stand-trial-accused-displaying-threatening-bumper-sticker
Not to sound smart-alecky, but couldn't you do an "annual night evaluation" in a less congested area that doesn't have a airport runway approach in the middle of it?