Well this is what Clover says in case anyone else is wondering! I may have to live with the blue fading lines because this baby isn't going to be washed anytime soon!
How can I remove the Chaco Liner from the fabric?
We recommend pre-washing the fabric before using the Chaco Liner. We also highly recommend to test the Chaco liner on a piece of fabric before marking. Try to remove the Chaco Liner by washing the fabric with 5 parts water, 2 parts vinegar, and air dry. Do not put in the dryer. If the problem persists, please consult a professional fabric cleaner. Try professional oil-based stain removing. Some solvent is sprayed on stains from front side, and fabric is vacuumed from the back side. Professional service is really required because this may damage fabric if not done with the right tools. Also, just dry-cleaning makes the marks permanent.