Narration at the start of the segment "Love on the A Train" identifies the man's daily starting point as Hoyt-Schermerhorn station. But on the day of the "first fight", it stops at Hoyt-Schermerhorn after he's on board.
Tucker gets off at the 7th avenue stop, noted by the signs on the brick pole, but at the top, the sign hanging from the ceiling is revealing the actual true stop, which looked to be Church Avenue.
In the segment, "The 5:24", the Tuesday train is shown entering the station and traveling throughout the scene from left to right, but at the end the car is seen rolling into a station right to left with Tucker and the Old Man in the same seats.
The Prospect Park station in Brooklyn is open cut (in a trench open to the sky), not cut and cover (underground tunnel) like Manhattan stations.