> I've had a situation that was sort of similar where a co-worker made a comment on my clothing being too uhm, urban.
That's not the same thing at all. The guy in question was accused of dressing too "thuggish" when he was wearing skinny jeans and wingtips. In other words, because he was black, regardless of what he was wearing.
A joke was made about how you were dressed because you had a hoodie with the hood up and are apparently white... like Eminem[1][2][3][4].
[1] http://cdn.preview.thumbplay.com/VAN/Thumb_Preview/Wall/UMG/...
[2] http://images.hitfix.com/photos/703638/eminem-hoodie_article...
[3] http://www4.pictures.gi.stylebistro.com/Eminem+Tops+Hoodie+0...
[4] http://inthehoodie.com/blog/wp-content/uploads/2009/06/emine...