Why was it fortunate that both annabeth and grover stepped out of the car wash during Percy's conversation with luke?

It was fortunate that Annabeth and Grover stepped out of the car wash during Percy's conversation with Luke because their absence prevented them from overhearing sensitive information. Luke's conversation revealed critical insights about his motives and the looming dangers, which could have influenced their decisions and strategies. Additionally, Percy was able to process the information without feeling the pressure of his friends' reactions, allowing him to think clearly about the situation. This moment of privacy ultimately helped him remain focused on the challenges ahead.