Trisk- I am so sorry!! I know exactly the type of shoulder you are talking about, Burnet County loves to use them. Glad you were relatively unharmed, nothing a few days of misery won't heal. 
I am never quite sure what to think of motorists. On one hand they anger me and on the other I feel for them being a bit stressed and wondering what to do. I come on cyclists myself and sometimes wonder what the safest way for all of us to pass is. At least you gave her the knowledge to not do it again (we hope).
Amanda
2011 Specialized Epic Comp 29er | Specialized Phenom | "Marie Laveau"
2007 Cannondale Synapse Carbon Road | Selle Italia Lady Gel Flow | "Miranda"
You don't have to be great to get started, but you do have to get started to be great. -Lee J. Colan