Dunno about Oregon, but Minnesota, where I live, and quite a few other states have recognized the problem and enacted legislation that allows a motorcycle to run a light after stopping if his bike does not trip the sensor.
Even in other states, there has to be a cop to see you before you really have a problem. Even then, most cops understand your dilemma and will give you a pass if you watch for cross traffic before running the light. You have to run into a dick of an officer, or act like a dick yourself, in order to get a ticket. If you do, fight it in court, make the cop show up, and raise the defense of necessity. If it ever gets that far, you are truly cursed, for it is a rare judge who will not cut you some slack.