The bigger safety issue is driving, (double) parking, and other driver actions. With the constant tracking and metrics gathering, drivers are incented to break

The bigger safety issue is driving, (double) parking, and other driver actions. With the constant tracking and metrics gathering, drivers are incented to break traffic law and create safety hazards for others via actions like "double parking". Amazon wants to externalize the difficulties of modern urban delivery onto their drivers; package throughput would be greatly reduced if drivers obeyed driving and parking laws (and basic etiquette) in modern urban and suburban settings.