你的错。

"...只好等着，等到红灯亮了，迎面来的车停下，我就抓紧这瞬间，左转弯，..."
In this case, less you have "LEFT TURN ONLY signal", then 你也穿红灯 + 左转弯!

你真运气，命大 + 碰到好人。其实你也有责任, 麦当劳工作的小子作证 maybe real... they just don't agree with you because you had the red light too. If you both have green lights, then it's your fault! You are tooooo lucky.