And they know that they can't just leave the package there, they have to find the correct door. And there's a flow in the Amazon delivery app to mark an incorrect geolocation, so they won't be penalized for taking longer time.
The app also has pictures of the location in question, to minimize the confusion.
From the homeowner's side, the garage door will be open for half a minute or so with nobody nearby. It's possible for a burglar to use this time to quickly run inside. But the probability of that is pretty low, and there'll be a camera recording of that.
Except that's not true at all. Amazon had my new house geolocated wrong (think robin instead of arden st in their system, even though I put the address in correct and it read back correct).
First delivery came, "delivered", not at my door... Contact CS, get a refund, continue.
"Ok, I'll setup key so they know it's wrong and deliver it in my garage."
Pieced together from video:
Second delivery arrives at wrong location, garage door opens...and was never closed. "delivered"
Took me contacting CS 5 times, with 5 failed deliveries, and doing an email bomb to get them to update my geo-location. Turned out it was literally across the fucking city, ~8 miles away.