If your weight doesn't activate the green light, do you still go?
I do. But then, I live in a state that doesn't criminalize reasonable, safe disregard of such stuff.
I occasionally get to a stoplight that has an interminable inability to recognize vehicles that have arrived ... car, bike. At a couple of common stops I use, weekly, I'll occasionally find myself waiting a couple of minutes and it hasn't yet changed. I'll go, so long as it's safe and after triple-checking to confirm all nearby traffic to ensure they're not about to do something silly.