This Bike Is A Pipe Bomb - Front Seat Solidarity Plan-It-X
From Wikipedia:
On March 2, 2006 at 5:30 am an Ohio University police officer spotted a bicycle attached to the Oasis restaurant bearing a promotional sticker for the band. The officer saw the words, "This Bike Is a Pipe Bomb" and became concerned. The area was cordoned off, and part of the campus was closed for several hours. The bicycle was subsequently destroyed by the Athens bomb squad despite assurances from the bike's owner that it was just a sticker. The owner, a graduate student, was initially charged with inducing panic, a misdemeanor. However, the charges were dropped a few days later. Later the student was awarded money for the damages to his bicycle.
A similar incident occurred in 2001, when a police officer spotted and detained a woman at an Austin, Texas peace rally. Her bicycle was also labeled with the band's sticker. The woman was released after the band's existence was confirmed.
On March 14, 2006 Bellarmine Hall at Saint Joseph's University in Philadelphia, PA was evacuated because of another bicycle with the band's name painted on it. No charges were filed.
On February 16, 2009, Terminal C at Memphis International Airport was evacuated because of a bicycle with the band's sticker on it. A pilot notified police when he saw the bike, with the band's sticker on it, parked outside of the terminal. Police evacuated the terminal and sent in K9 units; however, no explosive materials were found. Police arrested the owner of the bike but let the owner go a few hours later because he had not committed a crime. After hearing about the incident, the band's lead singer urged fans to use caution when they applied the stickers.