NPC's in Edgewater became hostile to me after I killed a rat in the town with a sword. This resulted in in 6% negative Spacer reputation. I have never attacked, nor tried to attack, any 'friendly' NPC's.
I have tried to reset the hostility by leaving the town and returning multiple times and by sleeping for days. I have routed the power to Edgewater...I have 90% positive Spacer rep! I still cannot walk freely around Edgewater; I have to sneak around, as NPC's enter shoot-to-kill mode when they see me. This means that I can't complete any remaining Edgewater quests. (PC platform)