Hi Wyrrrd,
I've pushed a pull request on Github. It's a compatibility patch that puts a maximum to the threshold, defined by the number of ammo loaded when you use an automated arm. It fetches the value of "loaded_ammo_count" for the turret and doesn't display the alert if it's higher than that. It was annoying me that the meteor defence system in Space Exploration is loaded with 4 ammo by an arm, so it displayed an alert.
Should also work on any other mod that adds ammo turrets.
https://github.com/Wyrrrd/Gun_Turret_Alerts/pull/3