A web site says, "the parking meter of the beginning of the movie was a symbol of absurd authority." If you park on the road, it is the parking violation. However, If you pay money, it isn't violation. I think so too.
After checking this movie, I knew that there is very famous word. The word is "What we've got here is a failuer to communicate." This is the word that the chief of the prison says to Luke. When it's translated literally, this means "I tormented him severely, but he escaped