Your article specifically mentions it's unknown what load they carried and the data suggests not a lot. News from 2022 say they hauled chips for 400 odd miles, and limited soft drink sorties to about 100 miles.

https://www.cnbc.com/2022/12/16/pepsico-is-using-36-tesla-se...

https://futurism.com/the-byte/tesla-semi-range-potato-chips