How i can break loop with touched function and resume loop again?

Got in contact with OP over discord.

He wanted to make a car move along an endless road, but instead of moving the car, he wants to move the road. Visual he sent me:

The code below creates sections of road to make it appear as if a car is driving on an endless road. When the car gets near the end of the last road section, it creates a new road and adds it to a list of road sections. The script makes sure there are only two roads in game at a time.

you can test the game here

local car = workspace.DMC12 
local roadModel = game:GetService("ReplicatedStorage").Road

local ROAD_MOVE_INCREMENT = 1 --how many studs the road moves back every WAIT_TIME seconds

local roads = {}

function createRoad(cframe)
	local road = roadModel:Clone()
	road.Parent = workspace
	
	cframe = cframe or road.PrimaryPart.CFrame 
	road:SetPrimaryPartCFrame(cframe)
	table.insert(roads, road)
	
	return road	
end

local road = createRoad()

while true do
	wait()

	--once we have two roads in game,
	--remove a road section from the back of the road
	if #roads > 2 then
		local roadToDestroy = roads[1]
		table.remove(roads, 1)
		roadToDestroy:Destroy()
	end
	
	--move all the roads forward
	for _, road in pairs(roads)do
		road:SetPrimaryPartCFrame(road.PrimaryPart.CFrame * CFrame.new(0,0,-ROAD_MOVE_INCREMENT))
	end
	
	--get the road segment at the front 
	local farthestRoad =  roads[#roads]

	--spawn a new road if the car is approaching the middle of the farthest road
	local roadMiddlePosition = farthestRoad.PrimaryPart.Position.Z 
	local carFrontPosition = car.PrimaryPart.Position.Z + car.PrimaryPart.Size.Z/2
	
	if carFrontPosition  >= roadMiddlePosition  then 
		createRoad(farthestRoad.PrimaryPart.CFrame * CFrame.new(0,0,farthestRoad.PrimaryPart.Size.Z))
	end  
end