Matt Imholt recently got into his 2015 Toyota Camry, and noticed it smelled of mold. "It was overpowering," he said. "You don't even want to be in the vehicle, it smells terrible." He tracked the source of the smell to wet carpet, and discovered that water was dripping onto it. "The carpet under here has gotten so moldy and mildewed that they have to replace the entire carpet in the car," he said. But it wasn't caused by rain, or a spilled drink. Imholt says the dealer diagnosed the problem as an attack of tiny spiders. "A spider had crawled into the air conditioning line, and it laid a web that caused the AC to leak," Imholt said.