Andy,
I am quite interested in your research. I do not know of any instances in West Texas when this topic has come up, but I will make inquiries.
While it is obvious that a person with dyslexia might have trouble with vehicle license plates, identification numbers, etc. I wonder if there are less obvious elements that aren't readily apparent. Perhaps, since you are researching the topic, you could help us all by defining the effects of the disorder and the major concerns for our profession. I think that would be very helpful in furthering the discussion.
Thank you!
Chris