Get one of those chip kits or have a pro outfit (any windshield outfit) to fix it before it spreads.
Nick Russell's wife (Ms Terry) of The Gypsy Journal
used to do windshield repairs as they traveled from campground to campground. Had her little professional pressure set up and made a few bucks fixing chipped windshields while in various campgrounds. And she fixed any chips in the windshields of their bus and tow'd. I've seen advertised chip repairs between $15 and $25 per chip fairly recently.