The "Whole Role Play" thing is what this server is about, its what makes Discovery unique and its what makes Discovery the best Server in my opinion.
PVP has its place, but it isn't the focus of this server- and you should be allowed to Role Play as much as you like in Liberty, or wherever, without being snapped on by a half a dozen people all looking to shoot at something.
Fact is though, that there are some reasons that will be a problem - firstly;people's attitudes: People assume you're there to PVP because, well, "your're hostile, and PVP's what its all about right?"
No people.. Wrong, its not about pvp at all.
You are hostile in that area though, so you should expect some pvp to ensue at some point, or at least, be a possibility, but if you open the encounter with Role play, you should get role play in return.