I've been meaning to post a topic about this for a while but what are those cell-phone looking things in the roads? Are they some kind of tracking devices for the old wold cars? Someone know what they are? Its been bugging me lol.

Do you have a picture?

You don't mean the reflective safety devices, known (in the UK at least) as cat's eyes, do you?
http://en.wikipedia.org/wiki/Cat%27s_eye_%28road%29