When Kris decides to stay at the restaurant to eat alone, she is not carrying a purse and the clothes she is wearing has nowhere to place any money to pay for her meal.
After Carol enters the elevator, she just stands there making no attempt to push a button to close the elevator door for the elevator to go to another floor.
Bosley and Sabrina cavalierly handle the shark tooth necklace that the killer left behind with their hands, not like the police or investigators would or should treat evidence.