Probably, but I am unsure what part of the regulations they are required to follow. I'm more familiar with human operator/FPV drones, mainly racing quads. Even

Probably, but I am unsure what part of the regulations they are required to follow. I'm more familiar with human operator/FPV drones, mainly racing quads. Even if they're only flying at 300ft to be safe I still very much doubt you will hear anything. My race quads are pretty loud but in my experiences with larger slower moving ones they can be pretty quiet once a short distance away from you is reached. Mostly attributed to the props being larger, slower spinning, and less aggressive.