I am getting so sick of open office plans. I have a colored light (a Blink(1), for those curious), and I have keyboard shortcuts for turning the light red/gree

I am getting so sick of open office plans. I have a colored light (a Blink(1), for those curious), and I have keyboard shortcuts for turning the light red/green, with a large sign next to the light that says "If light is red, I'm busy." I also wear very visible (and expensive) noise-cancelling headphones. Even these very direct techniques don't work--people ignore the light and interrupt me anyway. It's gotten to the point where I straight up tell them that they're being rude and interrupting me, and to just ping me on IRC or email. They continue interrupting. It's really sad that one of my main motivations for getting promoted is so I can get an office and avoid all these completely avoidable distractions. Between the ops culture's endless interruptions, "Agile" ceremony, and open office plans, I don't know how we manage to get anything done.