When Ernie describes what's wrong with the vacuum cleaner, he claims there is an open circuit in the heating element. There are no heating elements in vacuum cleaners. (I believe it was the dishwasher that had an open circuit in the heating element).
When the police car hits the parked car, the parked car is illegally parked. You cannot park within 30 feet of a corner.
When Malloy swerves to avoid the bicycle rider, he clearly does not run into the parked car.
When Reed and Malloy stop to deal with the drunk "matador," the same red Chevy passes by twice.
Reed and Malloy handled the washer coin boxes without rubber gloves so their prints will be on it. Evidence should never be directly handled.
LAPD must have been short on phones back then since their locker room has a pay phone in it.