It is never explained how the suspect got past Officer Minetto and gained entrance to the Cheif's house without Minetto raising an alarm.
When the guy is about to hook up the car for towing from the impound lot, the steel hook is magnetically attracted to the wrecked car. When he puts his gun on the ground, it flies to, and sticks to, the side of the car. Yet he can still throw the steel hook and steel cable at the cop, with seemingly no magnetic impedance.
A cop fires a gun at a suspect, but the bullet is diverted by a powerful magnetic field. Bullets are cast from non-ferrous materials, specifically lead and copper.