The interior driver's mirror comes and goes.
When the gang gathers in the police interrogation room, the door locks, trapping them inside. Davis remarks "..the door locks from the wrong side". Since this is an interrogation room, the door would be locked from the inside, if it locked at all. It would make no sense to lock police out of the room, had the door been installed the other way around.
At one point, when Lacey and Stephen are talking he says "So, this is The Ruby" Well it is implied that the two have not talked for some time and it wasn't called The Ruby until Lacey renamed it in the first episode.