When the police officer starts his siren to pull Tony over, the view in the rear view mirror shows nothing but woods to the right of Tony's car, but when he stops you can see houses and a sidewalk on that side of the street.
A Fake Tony is standing by a food cart in the park. He undoes his collar and loosens his tie. The next shot has his collar done up with his tie tight round his neck. The collar and tie alter their position with each camera position until the scene ends.
Tony tells the two Fake Tonys that they're being charged with bribing a Senator. The Fake Tonys actually committed blackmail--they received money from the Senator; bribing the Senator would involve giving money to him.
Abby uses the spectrophotometer on the screen to find out what color car scraped the victim's car. The screen would not have shown the true colour, and wouldn't work at all for the spectrophotometer, because it's light not an object which light can reflect off. She should have used it on the actual evidence.