You don't have to get arrested ans spend a fortune to change this.
If you think its worth the effort, and worth stirring up something for the likes of Ginny Burdick to get her teeth into, we could fire up a letter writing campain, with letters looking something like this:
To: Port of Portland Police Chief
Dear chiefy,
it has come to my attention that despite Oregon law specifically forbidding you to do so (ORS 166.173) you have an ordinance in place (384 section 3.8) which forbids holders of a current Oregon State concealed handgun license from carrying their weapons within Portland Airport.
I also understand that this contravention of Oregon law has been pointed out to you, and an opinion sought from Oregon Stae Legislative Council, which re-iterates that this ordinance is, in fact, illegal, and that you have refused to act to correct this situation.
The fact that an officer of the law can be so pig-headed, and a scofflaw to the extent that you appear to be is a disgrace to law enforcement.
Please have this section of the ordinance removed as soon as practical. If you should fail to do so, I will be contacting my state representatives and requesting that they introduce legislation to make the deliberate flouting of Oregon law by a sworn officer of the law a felony offence, and will enjoy seeing you as its first incarcerated victim.
Your sincerely -- a voting, law abiding, citizen of Oregon.
A few hundred of these, along with follow-up to your reps should get things moving.