Insurance company wants to total my car for completely cosmetic damages (Paint scratches, and 2 broken windows).

So here's the story. A load of sheet rock flew off a truck in front of me, and scratched my car all to heck. It removed a piece of chrome, broke the gas cap flap, windshield and side window. Purely cosmetic damage. No mechanical damage. No body damage. (other than said chrome) However, it's a 13 year old Jag, and really expensive to fix as the Windshield alone prices around $1,000. So it looks like the other guys insurance company wants to total my car for scratches on the paint and a cracked windshield. I'd like to keep the car, without a "salvage" title, (WA State), what can I do? Thanks in advance!