Randy,
You are right. Manifestations of ADHD can often be interpreted as inappropriate behavior, and a lot of individuals find themselves in trouble because of those behavioral issues, rather than because of their job skills. There was a classic article written years ago called, "Keeping Your Job At the Water Cooler," that talked about how the ability (or INability) to fit in to the social setting of the job place was the downfall of many individuals with LD and ADHD. I think your idea of having the Career Services folks address these issues straight up with students is a wise one!
Dr. Jane Jarrow