Ring doorbell not activating with Amazon Deliveries

This sounds weird but I get a lot of Amazon deliveries including grocery delivery. More than once they will bring items to my doorstep and the ring never turns on or records. After they leave I will go on the porch to get my groceries and immediately the ring activates. This is happened more than once so now I’m starting to think that possibly Amazon delivery drivers have some sort of jammer so they are not recorded by ring doorbell‘s. There’s a thread on Reddit with some people saying the same thing but I wanted to come to the Ring community and find out if anyone has had a similar situation. It has never happened with USPS or any other people coming to the door