What do Augustus, Isaac, and Hazel do after leaving Augustus’s house in Chapter 14?

When Gus wakes up, Isaac and Gus hug awkwardly. They tell each other how they are feeling. Gus instructs Hazel to drive them to the grocery store to buy eggs and then to Monica's house, where they egg Monica's car. Gus gets Hazel to take a picture of him and Isaac egging the car.