I worked for Metro in the mid 90's and no one even knew anything about the permits or if anyone had one. Their was, however, one officer that knew the law and would enforce it. I believe he is still on the road to this day. The Metro Government and it police department did not like to give out municipal citations for violations of metro ordinances. This is due to the government wanting the burden on the General Sessions court system verus the metro government spending the money and manpower to enforce and prosecute. We were always advised to write state citations out rather than metro citations for violations. The Metro Government does, however, spend the time and effort on codes violations.