Rewatching this episode today I had a couple things hit me.
I loved the Smith & Wesson thing. That was pretty funny. Part of that attention the Show pays to minor details and nuances.
And remember how Office 1444 was considered to be the center of the company's operations, with Sandover himself overseeing all details of any construction project the company undertook?
If you'll remember back in the day many buildings built back then had no 13th floor because of superstitious reasons.
And something else hit me I missed before. The comment Zac/Adler made about >>>I see big things in your future. Maybe even senior VP, Eastern Great Lakes Division. <<<
Was that foreshadowing of the confrontation Dean and Sam had with Lucifer in Detroit?
There was something else early in the episode but I lost that train of thought.