Looks to me like local Police officers want to make up laws at their fancy. Who do they think they are, the NSA or something?
http://www.centurylink.net/news/read/category/Technology/article/bgr-woman_gets_ticket_for_wearing_google_gla-ncrd
After a bit more research it looks like the woman was originally pulled over for speeding. Apparently, it's illegal in California to use a HUD in a moving vehicle unless it came as original equipment on that vehicle. Hence the ticket for the wearing the Google Glass headset. Still, I think the officer is reaching here trying to classify the Google Glass as a HUD. There is no mention if the Glass headset was even turned on. Could the officer tell if it was? Just the fact the woman had it on her head seems to have offended the officer.