I don't know if it was a note or a message, but the hair on my arms went straight up when I clicked away from the Packers game for a sec.
I've thought that the sniper is keying off Chief Moose. That may be why he was chosen to make the statement.
"to the person who left us a message at the Ponderosa last night, you gave us a telephone number; we do want to talk to you; plesae call us at the number you provided!"