Consider yourself fortunate. I am from Ca with Ca plates on my car. I drive through Oregon 3 times per year to visit my mom in Idaho. Over the past 6 years that I have been making this trip, I have been pulled iver 3 times by Oregon state police:once for going "50ish" in a 55 zone and obstructing traffic (the cop was the only car behind me), once for speeding 58 in a 55 zone (semis were passing me of course), and once for violating the dew line (who knew that's what they called the stripe on the outside of the road?) when I pulled over to let a cop by. I got a little snippy with the cop who pulled me over for speeding and he admitted to what I already knew. He pulled me over based on my plates and car. I fit a profile of a drug mule evidently. So, look at it this way at least you weren't being pulled over to simply be harrassed. You were in violation of a well known part of the vehicle code.
