ExSimGuy
Yes, mine was a big fat nothing! There is a school of thought that producing a negitive result is in fact reassuring the public. I can see some merit in that, but I can also see your point, and agree that doing it out of the way would be a more reasonable approach.
In my case it was conducted by Traffic, who probably had issues with my parents being married.
My only reason for mentioning it, is that the FODCOM has no effect on the Officer making the request, he may not even have heard of it. So if asked to take a breath test, and you are willing to take it, and the officer declines to do it out of sight, then don't argue, as the result may be worse.