script.Disabled = true but its still running?

i am making an SCP game and i am trying to make SCP 173 heres the script:

local RunService = game:GetService("RunService")

local npc = workspace.NPC
local character = game.Players.LocalPlayer.Character

RunService.RenderStepped:Connect(function()
	local npcToCharacter = npc.Head.CFrame.LookVector
	local npcLook = (character.Head.Position - npc.Head.Position).Unit
	
	local dotProduct = npcToCharacter:Dot(npcLook)
	
	print(dotProduct)
	
	if dotProduct > .5 then
		workspace.NPC.Follow.Disabled = false
		workspace.Baseplate.BrickColor = BrickColor.new("Black")
	else
		workspace.NPC.Follow.Disabled = true
		workspace.Baseplate.BrickColor = BrickColor.new("Baby blue")
	end
end)

the script is from https://www.youtube.com/watch?v=BUwAcW_18Ws and modified by me I already put workspace.NPC.Follow.Disabled = true but disabled is still false when running the game.Help appreciated!