They sometimes get touchy about not stopping too.  We were going to NC towing enclosed bike trailer and was waved through. On the return trip, I was driving and decided since the guy waved me through I wouldn't stop. DH lectured me about it and as I looked in mirror I saw blue lights. The officer ask what we hauling, told him Harleys and golf clubs. He wanted to look, fine with us.  I got a warning ticket, I guess it was a slow day. Moral of story, we go through Fl inspection stations now. We were on secondary road out of Lake City.