Was that really a thing? Or just snake oil?
Must be a southern thing... up here, we have metal mites!
You have to spray those mites too?
Zipper
I don't know about ants but in Alabama we have mud dobers that build everywhere. Inside wheels in air cleaner you name it. I've had them stop up oxy/act hoses that were not hooked up. Throwing a wheel out of balance wouldn't be out of the question. Never heard of automotive insecticide though.