Hey,
where in plano do you ride???
I tend to get that same behavior when riding up Midway north of plano parkway. I now a days ride in the middle of the right lane b/c it is a 3 lane road.Screw them. I have my pump with me. that is enuff to take a side mirror off.
another thing I found that works well is to be sure you SPIT towards the left side when cars come by. You may actually catch a few with a good lugi. hehe.. That deters them some. hehe