When you restart after destroying Akron, it should ask you to confirm it, due to the lack of a safe guard I had to battle Akron again so that I could select some of the options
Firstly, how do requiem? Secondly the best way to take care of encounters is to run until they are 4 distance away so you can go to the nearest station, that way when they catch up you can enter the station anytime tor reacharge hp and batteries