When Friday and Gannon are staking out the company at the end of the day, the same man in a red coat, tan pants, black shoes, and fedora is seen exiting the building twice in separate shots surrounding a shot of Friday and Gannon talking in the car about fried chicken.
At the Clover Club, Friday and Gannon approach the security guard and are inches away from him as Friday identifies himself and Gannon as LA policemen. In the next shot, the guard identifies himself and they are suddenly several feet away from him.
LAPD officers Friday and Gannon wouldn't have jurisdiction to arrest Pendleton in Clover which isn't in Los Angeles.
About 10 minutes from the end, they are parked at a gas station and, in the background of their vehicle, a business can be seen. Its sign reads: "Wheel Alinement". The correct spelling for that is: "alignment".