Why stop at buses? Why not have drones land on self-driving cars that integrate with Bluetooth? Never mind the noise; we'll design the cars such they output t

Why stop at buses? Why not have drones land on self-driving cars that integrate with Bluetooth? Never mind the noise; we'll design the cars such they output the inverse frequencies being output by the drones, canceling out their sound. Even better, the drones can be designed to look like pies.