Hi,
Just tried this plugin and for some reason some turrets are targeting people who are Authed on the TC. My settings are the default.

{
  "Autoturrets affected": true,
  "Autoturrets shoot authed players": true,
  "Flame traps affected": true,
  "Sam sites affected": true,
  "Shotgun traps affected": true
}​

While it doesn't seem connect i do get 
"Calling 'CanBeTargeted' on 'ToolCupboardTurrets v1.0.9' took average 1397ms" in the console.

Ah think i've figured it out. So they had been auth'd on the TC that the turret was sat on. However a Compound TC near by they had not authed on. So as they walked by and i assumed got Building Blocked. The AT targeted them. Once authed on the compound TC the AT no longer target them.

Merged post

Same issue remains after the recent update as well. 
If you move into TC range of a TC you're not authed on then the turret will shoot you even if you are authed on the TC of the location of the turret.

Merged post

Updated, 1.1.4 fixes some issues. 

So now ive i'm auth on the TC that the Turret is sat on and walk towards a TC i'm not auth'ed on i won't get shot anymore.
However i deauth from the TC that the turret is on i get shot (which is correct) but if i place a new TC (say for a raid base of compound) the AutoTurret doesn't see me as a threat anymore. 
So by placing a new TC near by you can get around the auto turrets defences.