Juiceman---how long ago was that? I've driven in the Yucatan more than 20 times over 6 years and have never once been stopped by a cop. In any other Mexican state either. None of the expats I know there have ever had any trouble except when they had a light out or were speeding---like here.

Anyway, roads down to the Belize border are fine, then they get worse as soon as you cross. The issue though is crossing the border with a car. I don't know of any rental agencies that will allow you to do that and the border guards will demand papers with explicit permission, proof of insurance, etc. More hassle than it's worth.