The janitor threw a note into Carrie’s car and left. She intended to tell Carrie that someone was waiting for her at a bakery near the hospital. However, Carrie berated her from the get-go using offensive language. The janitor had to endure it and refrained from swinging the broom at the car, not wanting to say another word when she was being treated like that.

Carrie thought the janitor was throwing garbage into her car.

When she picked up the note and was about to get out of the car, she unexpectedly found words written on it: [Meet me at the bakery, Mrs. Clark.]

Carrie then realized the janitor was delivering the note to her, wanting to explain why she had knocked on her car window.

She wanted to get out of the car to catch up with the janitor, but the person had already gone far. Considering the harsh words Carrie had just used, even if she caught up, the janitor might not want to talk to her.

Carrie could only drive away from the hospital.

She inferred that Mrs. Clark must