Thanks to all for the replies. I forgot to clearly state that I am on a PC (WIndows 10).
I finally was able to exit the T60 by finding my old T45 save and figuring out that I was able to exit at the Power Armor (repair) station. So I walked in the T60 PA to the nearest PA station I own (Home Plate) and was able to transfer/exit there (and remembered to take out the FC just in case --read to do that in another thread somewhere--).
Yes, I have two murders to my credit so far due to one long-range sniper shot with my beloved 308 and one medium shot with a just as beloved 10mm suppressed Recon semiauto (and a combat shotgun for close in backup work) ---actually, am surprised I do not have more of "murders" since I have taken quite a few long and medium shots, but usually raiders and super mutants are pretty recognisable.... I had just read a few days before in passing a thread about Raiders in PA and did not expect a BoS couple (and only one in PA) to be walking around what had been an active raider zone in the vicinity of the Hardware building so I just took out the (in my eyes) #1 threat (the guy in armor) with a head shot and then snuck-in on the side kick who could not find me and "gave up" since I was a a medium-2-long distance away -- my character has high Perception which I have built to 10 as quickly as I could with gear and 6 SPECIAL points from level 2 on {high sneak + high perception + shadow armor = sniper has been my approach {with high INT for science perks+gun nut}, usually solo, the three companions I have tried --Macready, Cait and Piper do not always do what I tell them (especially Cait) and Deacon hardly provides any fire support}.
Question 1: can one only exit PA at PA stations? I still can NOT exit even in the middle of an empty street if not within close proximity to the PA station? (I can get in with a FC anywhere, but not get out?)
Q2, Why don't the companions fight when they are told to "stay" in a position --so that they can at least cover my flank or rear or some enemy avenue of approach while I concentrate on what (seems) like the main concentration of foes? All the companions I have used (enumerated above) have failed me in that manner, If I do not give them a "stay" command. they will run toward the enemy to engage them (except for Deacon who does not seem to do anything) instead of letting them come to us so that we can cut them down as they approach our position (usually with a couple or four mines in placed along the route(s). . . very ill disciplined companions who should have stayed shot -hence, no companion perks and I go solo (at least for now). [I miss the companions mainly in their role as mules since I have a Strength of 3.] [I need to do a search on companions to see if anyone has commented on similar experiences on the PC with the recently patched FO4.]
As I re-read this before posting, maybe Q2 should be a new thread, but I am sleepy and must get up in just a few hours so I let it go and will re-post if need be. Good night (morning) to you all. And good hunting! regards, RC