When A.J.'s car catches fire, the Bob Dylan song playing on the radio starts slowing down. Even if it was a cassette playing, that would not happen unless the heat from the fire was physically damaging the tape player. It would more than likely simply stop, not slow down and decrease in pitch as depicted here, as the fire hadn't intruded into the interior at that time.
Since AJ has a history of panic attacks, a doctor would never approve his request to join the army.