South Florida breeds car burglars like cockroaches; they're everywhere, they like to rifle through your stuff, and they're pretty damn fast. (The only differences are that the thieves aren't quite as big as the roaches and can't fly.) So you never want to park your car out there in the public domain. But every now and then, it happens: You're meeting friends, you plan to ride in their car, and you wonder what to do with your vehicle. The park-and-ride lots have four attributes that make them perfect: They're centrally located along I-95, well-lit, patrolled by Wackenhut, and free. They also stay open round-the-clock. But Tri-Rail does not recommend leaving your car there overnight, because patrols cease about 9 or 10 p.m. and don't resume until 4 a.m. We, however, have braved it through midnight and even later at times and have returned to find our car as safe as a bug in a rug... or maybe a roach in a rug.