What did the Socs do when they jumped Ponyboy after he left the movie?

In the opening scene of the novel, Ponyboy is walking home alone from the movies when a Corvair pulls up beside him, and five Socs get out. Ponyboy quickly scans the ground for a pop bottle to fend off the Socs, but there is nothing in sight he can use to defend himself. When the Socs approach Ponyboy, they sarcastically tell Ponyboy that they are going to do him a favor by cutting off his long, greasy hair. One of the Socs then pulls out a knife, and Ponyboy begins backing up until he accidentally walks into another Soc standing behind him. The Socs proceed to throw Ponyboy to the ground and pin down his arms and legs while one of them sits on his chest. When Ponyboy struggles to free his arms and legs, the Soc member on his chest punches him a few times in the face before holding a blade next to his throat. Ponyboy then panics, and the Socs attempt to shove a handkerchief in his mouth. Fortunately, Pony is able to bite one of the Soc's hands before they take off running as the Greasers come to his rescue. While Ponyboy is laying on the ground, the Greasers arrive at the scene and comfort him after his traumatic experience.