Boolvalue saving datastore loads all boolvalues as true no matter what?

I'm trying to make a boolvalue saving datastore to save cars. Each car has it's own boolvalue (once you buy a car it's boolvalue is set to true), and when it goes to save the values it only saves the name of the boolvalue that is true. So when it loads in the datastore, it checks for that name and since it's already true it makes that boolvalue true. However, my script doesn't work. No matter what, even if all of the boolvalues are false, they are all set to true once they are loaded. Here's the script:

local dss = game:GetService("DataStoreService")
local ds = dss:GetDataStore("CarData1")
local scanfolder = game.ReplicatedStorage.CarValues:GetChildren()


game.Players.PlayerAdded:Connect(function(player)
	local success, errormessage = pcall(function()
	local saved = ds:GetAsync(player.UserId.."-cardata") or {}
		if saved then
			for i, v in pairs(saved) do
				local addvalue = game.ReplicatedStorage.CarValues:FindFirstChild(v)
				addvalue.Value = true
			end
		end	
	end)	
	if errormessage then warn(errormessage)
	end
end)

game.Players.PlayerRemoving:Connect(function(player)
	local valuetable = {}
	for i, v in pairs(scanfolder) do
		if v.Value == true then
		table.insert(valuetable, v.Name)
		end
	end
	local success, errormessage = pcall(function()
		ds:SetAsync(player.UserId.."-cardata", valuetable)
	end)
	if errormessage then warn(errormessage)
	end
end)

game:BindToClose(function()
	for i, v in pairs(game.Players:GetPlayers()) do
		local player = v
		
		local valuetable = {}
		for i, v2 in pairs(scanfolder) do
			if v2.Value == true then
			table.insert(valuetable, v2.Name)
			end	
		end
		local success, errormessage = pcall(function()
			ds:SetAsync(player.UserId.."-cardata", valuetable)
		end)
		if errormessage then
			warn(errormessage)
		end
	end
end)

Any help would be appreciated!