577.300.  Leaving a child unattended in a motor vehicle — first and second degree — penalties. — 1.  As used in this section, the following terms mean:

  (1)  "Collision", the act of a motor vehicle coming into contact with an object or a person;

  (2)  "Injures", to cause physical harm to the body of a person;

  (3)  "Motor vehicle", any automobile, truck, truck-tractor, or any motor bus or motor-propelled vehicle not exclusively operated or driven on fixed rails or tracks;

  (4)  "Unattended", not accompanied by an individual fourteen years of age or older.

  2.  A person commits the offense of leaving a child unattended in a motor vehicle in the first degree if such person knowingly leaves a child less than eleven years of age unattended in a motor vehicle and such child fatally injures another person by causing a motor vehicle collision or by causing the motor vehicle to fatally injure a pedestrian.

  3.  Leaving a child unattended in a motor vehicle in the first degree is a class C felony.

  4.  A person commits the offense of leaving a child unattended in a motor vehicle in the second degree if such person knowingly leaves a child less than eleven years of age unattended in a motor vehicle and such child injures another person by causing a motor vehicle collision or by causing the motor vehicle to injure a pedestrian.

  5.  The offense of leaving a child unattended in a motor vehicle in the second degree is a class A misdemeanor.