How do I deal with stoplights that don't change?

Where I live, stoplights are activated by weight sensors. When I ride my motorcycle, the combined weight of the bike and myself is around 600 pounds. This is, apparently, not heavy enough to activate the sensor. So if I’m at a light with a sensor and no other vehicles going the same direction as myself, the light will never change.

Suppose I were to run the light (when it was safest, of course). Would a judge/cop etc. be likely to forgive the illegality of the maneuver in light of the impracticality of waiting for another car to show up? If I did get a ticket, would I have a case?