Sure. But this is not specific to Amazon. Most media pieces around this made it sound like Amazon drivers' are exclusive to this experience.
A lot of people working in the transportation industry do this and it is not very hard to imagine why they would do this.
Just one example: https://www.quora.com/Do-truck-drivers-ever-actually-use-pis... You can find several other articles, and also speak to actual drivers and they will also explain why do they do this.