Возвращение Мухтара S11E35 - Опоздавшая пицца

A pizza delivery man stops to replace a punctured car tire. Suddenly, someone hits him on the head and steals a car. Detectives begin an investigation from the cafe where the car was parked, and they find the students in hot pursuit. They decided to detain the courier in order to receive their order at the expense of the establishment, and punctured the tire, but they have nothing to do with the attack on him. Then who stole the car?