This afternoon at 14th St., I saw a freshly repainted #155 facing north along with retired bilevel #712, Metra, RTA, and BNSF logos blotted out. About a month and a half ago, I saw #157 at 14th St. facing north. Why is it that some of the rebuilt locos from UP make a stop at 14th St. on the way to/from the Rocket House?