Or we could simply hallucinate that the packages are there at the three houses.

Hallucinations all the way down...

Nobody said the 3 houses needed to be on separate properties. Just throw the 3 packages from the moving truck at the one address where all 3 live.

Being an LLM is easy!

In the end it's just Boltzmann brains.

https://en.wikipedia.org/wiki/Boltzmann_brain