I'd wager that you are riding on top of other people's prime subscription in close proximity to you. Amazon dispatches your stuff on the same truck as their bec

I'd wager that you are riding on top of other people's prime subscription in close proximity to you. Amazon dispatches your stuff on the same truck as their because it's more economical than having to come back twice. This would only work in an urban setting where orders are scarce. In a densely populated area it's unlikely to happen.