A door to any car should not be left any longer then is absolutely necessary in Oregon.

811.490 Improper opening or leaving open of vehicle door; penalty.

 

(1) A person commits the offense of improper opening or leaving open a vehicle door if the person does any of the following:

(a) Opens any door of a vehicle unless and until it is reasonably safe to do so and it can be done without interference with the movement of traffic, or with pedestrians and bicycles on sidewalks or shoulders.

(b) Leaves a door open on the side of a vehicle available to traffic, or to pedestrians or bicycles on sidewalks or shoulders for a period of time longer than necessary to load or unload passengers.

(2) The offense described in this section, improper opening or leaving open a vehicle door, is a Class D traffic violation.

[1983 c.338 �655; 1985 c.16 �320]

Appearantly no self-service allowed in Oregon.

In Oregon, it is illegal to carry a baby on the running boards of a car.

811.205 Carrying child on external part of vehicle; penalty.

 

(1) A person commits the offense of carrying a child on an external part of a motor vehicle if the person carries any child upon the hood, fender, running board or other external part of any motor vehicle that is upon a highway.

(2) The offense described in this section, carrying a child on an external part of a motor vehicle, is a Class B traffic violation.

[1983 c.338 �604; 1995 c.383 �53]

It’s illegal to place any sort of containter filled with human poop on the side of any highway.

811.172 Improperly disposing of human waste; penalty.

 

(1) A person commits the offense of improperly disposing of human waste if the person is operating or riding in a motor vehicle and the person throws, puts or otherwise leaves a container of urine or other human waste on or beside the highway.

(2) The offense described in this section, improperly disposing of human waste, is a misdemeanor and is punishable by a maximum fine of $250.

[1999 c.670 �2]

In Oregon you are not allowed to drive too much at any given time if you are testing your physical endurance.

811.125 Speed racing on highway; penalty.

 

(1) A person commits the offense of speed racing on a highway if, on a highway in this state, the person drives a vehicle or participates in any manner in any of the following in which a vehicle is involved:

(a) A speed competition or contest.

(b) An acceleration contest.

(c) A test of physical endurance.

(d) An exhibition of speed or acceleration.

(e) The making of a speed record.

(f) A race. For purposes of this paragraph, racing is the use of one or more vehicles in an attempt to outgain, outdistance or prevent another vehicle from passing, to arrive at a given destination ahead of another vehicle or vehicles or to test the physical stamina or endurance of drivers over long distance driving routes.

(g) A drag race. For purposes of this paragraph, drag racing is the operation of two or more vehicles from a point side by side at accelerating speeds in a competitive attempt to outdistance each other, or the operation of one or more vehicles over a common selected course, from the same point to the same point for the purpose of comparing the relative speeds or power of acceleration of the vehicle or vehicles within a certain distance or time limit.

(2) The offense described in this section, speed racing on a highway, is a Class A traffic violation and is applicable on any premises open to the public.

[1983 c.338 �568; 1985 c.16 �287]

I thought this one would be a given, but appearantly not, drivers must yield to pedestrians that are standing on a sidewalk.

811.025 Failure to yield to pedestrian on sidewalk; penalty.

 

(1) The driver of a vehicle commits the offense of failure to yield to a pedestrian on a sidewalk if the driver does not yield the right of way to any pedestrian on a sidewalk.

(2) The offense described in this section, failure to yield to a pedestrian on a sidewalk, is a Class B traffic violation.

[1983 c.338 �547; 1995 c.383 �42]