The cigarette pack Michael uses to stop the door when he's on the roof is Morley brand cigarettes. The package is styled after Marlboro cigarettes and the brand has been used in TV and movies as early the 60s, most famously in The X-Files; the brand preferred by The Cigarette Smoking Man.
The black truck driven by Trevor in this episode was also previously driven by Kent in Loose Ends, Part 1 (2007).