How am I supposed to print my print-at-home tickets if I can’t reproduce them?

I ordered some tickets online and was sent to a Web page which displayed the tickets (with bar codes and stuff), with instructions to print them out.

The Web page also had this big warning on it:

IT IS UNLAWFUL TO REPRODUCE THIS TICKET IN ANY FORM.

Um, this is a print-at-home ticket. The entire reason for its existence is to be reproduced in printed form.

I printed it anyway.

Nobody arrested me.