Over the past few months, the Metro Police Department has saturated I-24 with cops. It’s not uncommon to see 2-3 cop cars going in or out of town. I’m pretty sure that the other Interstates are heavily policed as well (Especially I-40, because of the drugs), but I know for a fact that I-24 is usually covered pretty well. They even have a helicopter flying around now for the sole purpose of catching speeders, so if you’re coming through Nashville at all, watch out.