I've never run into any friendly, or even neutral, NPRs. They always answer my "Hello" with a full broadside of ASMs, usually to the detriment of some wayward geo or grav survey ship. If anyone does find a way to vacate friendlies, however, it would be good to know In case I find some 'friends' in the future. I don't care how chummy a foreign empire is, I wouldn't want them shacking up warships in my space.