I've had multiple experiences with pretty much every police force in and around Jefferson County. LMPD has its fair share of good, honest, respectable cops that go out there every day and lay it on the line. That being said, there are plenty of asshole cops on LMPD. Cops that treat you like shit and have some type of superiority complex. Stereotypical cops.

State Troopers act like they're in the Marine Corps. I've rarely encountered one that was anything less than a festering bag of crap in terms of attitude. I have encountered some nice ones, but they seem to be the exception.

If you get pulled over by a J.C. Sheriff, you have really fucked up. They rarely pull anyone over. Otherwise, in my experience they tend to be some of the easiest cops to deal with.

Audubon Park cops are the worst. These glorified meter maids will pin anything and everything they can on you. Do yourself a favor, don't speed on Poplar Level Road, Preston Highway, or any street bordering or in Audubon Park. In fact, unless you live there, just stay away from Audubon Park. They've been known to pull people over for cutting through from Preston to Poplar level at night for looking "suspicious."

J-Town cops are the "out to pasture" cops. They are (or at least were) the highest paid police force in the state. Their main job is to monitor industrial and commercial sites and babysit the movie theaters. They can be complete assholes, but IME only fuck with people when they've done something to attract that attention.

St. Matthews Cops are pretty much the red headed step children of the Louisville Metro area police forces. They're virtually useless because their response time is far too long, but they get completely butthurt when LMPD steps into their jurisdiction. The semi-friendly rivalry between the old County police and City police was at least put aside when calls came in, but SMPD can be real assholes about their jurisdiction. Plus it seems like half of them don't know what the speed limit is in any given part of St. Matthews. I actually had to walk a cop back to the sign that proved I wasn't speeding. Then he claimed he was just "testing" me. ಠ_ಠ

Sources: Was originally a criminal justice major. Know lots of cops on lots of police departments. Know lots of people in other areas of law enforcement in Louisville. Have been around the law enforcement community since I was a kid.