A Pulitzer Prize finalist in the cartoonist category, Pat Bagley has worked for The Salt Lake Tribune for more than 45 years.

Rober set up a giant wall made of foam blocks, resembling a typical Hollywood set – a so-called "fake road wall." Even to the human eye, distinguishing the photo wall from a real road was difficult.

As for the torrential downpour test, while the wall of water initially hid the mannequin from the LIDAR, it still detected it in time to come to a stop safely. Considering how those tests went ...