Audio problem: Near the end of the movie, when the police break through a skylight, you can hear the glass break at the skylight, but when the glass reaches the floor there is no sound of the broken glass hitting the floor. (01:24:14)
Audio problem: On the Silicon Graphics computers, one of the sound effects heard is a floppy disk drive access sound from an Apple Macintosh computer.
Chosen answer: Cost of shipping would be much cheaper. However, the Mississippi River System is connected to the Illinois Waterway, which continues to the Great Lakes Waterway. This means Chicago is connected to the Gulf of Mexico (which is accessible to South America). There would be no need to ever be on the road.
Bishop73