I was driving home last night and while I was on the highway, I heard a loud bang sound (maybe a small rock smashed against my car??) By the time I realized what was going on, I noticed a small crack on my windshield glass about 1 inch long. I haven't had the time to take it to an auto bodyshop yet but I know the cost of windshield glass replacement can be astronomical so I'm wondering whether or not this type of damage can be repaired or should I brace myself for a heart attack?