I'd laugh pretty hard if the second one was an automatic redelivery attempt.

"Something went wrong with the drone. Send another!"

If an amazon delivery drone uses the same route as a truck, what's the point of the drone? As a crow flies would be the point to be as direct as possible.

Edit: Nevermind. I'm not awake yet. this logic does not compute. please ignore

Without knowing anything about their routing, I think grandparent is saying they likely were on the same vector, perhaps same destination.

wow, your interpretation is much better than whatever went through my head. i'm going with too early in the morning. not enough coffee.