Some of the LinkedIn Responses are direct and on-point, and also hilariously/depressingly based depending on how you look at it:
EDIT: In hindsight, I think I should've looked into posting this in a different community.. It's closer to a silly "innovation".. soo.. is this considered FUD? I also don't support smoking or vaping, especially among kids. Original title had "privacy-violating" before the "solution".
A piece of clear packing tape would take it out permanently as it would be almost impossible to see that the sensor was covered if the tape was applied cleanly.
You've seen packing tape in real life, right? It's not "almost impossible to see", it's shiny and obvious. As much as I love skirting draconian measures, that ain't it...
Nobody is going to inspect it that closely, especially if they mount it on the ceiling. It does blend into certain plastics that are smooth.