Try to pick up Mosaic Stones but Rufus will manage to take only Chewed Gum. Notice, that there is Fuse Box hidden behind mosaic. Open it and get a Torch Light. Try to press Fuse Switch - Rufus will manage to reset the elevator password!
Go to the elevator. Put the Mop into Oil Tank Lid, getting Greasy Mop. Use the Controls to enter a new password. The elevator will take you to the upper platform. Rufus will see Organons' Cruiser approaching the Station. Is Cletus collaborating with them?