The UPS truck that delivers to my block makes a bit more noise then the average car driving down my street, parks, the driver gets out of it, and spends a couple of minutes making >20 deliveries. A human carrying cardboard boxes does not make much noise. Neither does a powered-off truck... And it's not like UPS does domestic deliveries from the back of 20-wheeler rigs.
This is orders of magnitude less noise than 20 drones, coming and going, throughout the day. (Not to mention the ones passing overhead, to deliver to the next block down...)
This is orders of magnitude less noise than 20 drones, coming and going, throughout the day. (Not to mention the ones passing overhead, to deliver to the next block down...)