This works if you have an old thermal fax machine: Take 2 peices of paper and tape them together (bottom of one to the top of the other). Draw a thick black Line on them.
Dial a local fax # after they close their buisiness for the day. As it starts to feed through and fax, tape the other two ends of the paper together creating a loop that will continue faxing, until the receiver runs out of paper.