Well, unless things have drastically changed in the last few years we have traveled tens of thousands of miles in Mexico and never had a bad cop experience. We have had more than a few really good ones though. Leading us out of the middle of town after being hopelessly lost, helping us find campgrounds, getting ours neighbours laptop back from a couple kids that took it off their picnic table when it was unattended on a beach (all except the power cord). Really, I think the Baja is pretty calm compared to most places in the US. Really, just go and enjoy yourself, use your head for more than a hat rack and make good decisions...just like you should always do when travelling.
