Danny kills a suspect and is shown back at work like the next day. Regardless of the circumstances, police officers are always given time off after a shooting. The NYPD under procedure 205-08 also requires members involved in a shooting to be referred to trauma services.
Technically, the fare-beater, Angela did not commit the crime of "fare-evasion", since she was leaving the train station as oppose to entering.
A plot point this week is Danny reacting badly to killing a suspect. Just one week earlier in My Brother's Keeper (2019) he killed a hostage taker, and had no adverse reaction, and very little reaction at all. The focus then was his conflict with disobeying Jamie's orders.