I've been here 25 years, every vehicle I have ever had parked out in the cement driveway ends up having these small light brown spiders inside it. I see them on the outside of the windshield too Where the heck do they come from out of the trees or what? I see more of them in the fall I guess they come in through the heater vent, blower intake whatever. I never leave the windows open Anyone have spiders in their vehicles?