By september last year had been used for just 13 million journeys over its lifetime, which is equivalent to the number of trips made on the Tube in less than a week.
"The search for a brexit benefit continues," tweeted one person after seeing the image of Boris Johnson looking into a hole in the ground.
"I feel like a madman", he said.
"The criminal always returns to the scene of the crime," tweeted Danny Wallace in response.
It will also seriously confuse most shoppers, Liz Truss has been warned.
“He’s going to be hovering around, hoping for a populist return.”
Mr Johnson was ousted by his own MPs after a slew of scandals and is set to be replaced at No 10 by Liz Truss or Rishi Sunak next week.
Facing probable defeat at a General Election, the party may be prepared to gamble on the outgoing prime minister again.
It comes as Boris Johnson’s final fortnight in office will see him divide his time between No. 10 and his country retreat Chequers.