In this episode Chimney mentions that he and Maddie live on the 3rd floor of their building. However it was previously mentioned in 4.3 that they live on the 2nd floor.
There is a standoff between police on the ground and a burglar on the roof of a house. For 6 hours, the burglar keeps running around, waving a gun, and none of the police have weapons aimed at the main, in case he starts shooting.