Hon,
I'm sorry you went through that. It can feel a bit defeating, I'm sure. But I think you handled it correctly. And there are many tall women...maybe not in L.A. as much but they do exist! There are so many parameters that may throw people off. For instance, when I didn't have my voice down, I was constantly being sir'd even when I was in full girlie mode while transitioning. Or sometimes, I was clocked (this was like my first year out), because of my stride and posture. And then sometimes, it was because people wanted to be wankers. Luckily, I haven't been clocked in a few. But as some of the girls say here, it might have been they were not paying too much attention to you and honestly screwed up. Still, it can hurt a little and for all it's worth I'm sending my own hugs your way.
Remember YOU ARE BEAUTIFUL!