Detour Signs Reflective Decals on Road signs and Invading UN troops a total horse shit conspiracy

As you ride along some state and interstate roads you will see below them  colored  detour route signs  Red, Green, Black, Blue and Yellow the purpose for this is for emergency routing of traffic during severe snow storms etc when the state or interstate roads are impassable so out of area drivers can safely navigate  around the roads closure.
 You might also notice some road signs on the back have a reflective decal on them with numbers some times a bar code  this is for maintenance purposes for road crews to know when signs where installed  and need replaced etc.  nothing else.
But there are those Black helicopter conspiracy types who go around on the internet perpetuating the conspiracy rumor the color detours and reflective decals are there so UN or other invading troops can  navigate  there way to and thru towns after an EMP   Electro magnetic Pulse attack  ?? seriously this is what these fools believe  and there is absolutely no truth to it what so ever invading troops already have maps and anything else they will need they do not need ground navigation needs but you can not convince these idiots there wrong.  a system put in place for the safety of the public  blown completely insane.
but its a free country and people are free to think what they want and theirs no arguing with idiots and wasting your time.