See if it fits nicely in the machine without water in your top load washer. Are you sure you don't have any bleeders? The more cramped it is, the more likely it is you will get colour transfer if you have a bleeder. If your machine is too small, you could wash it in the bathtub.
Fill the tub half full of lukewarm water and a gentle soap. Lower the folded quilt into it and agitate the folded quilt with your hands until you figure the glue is gone. Let out the water and then put in more water to rinse. Let the water drain out compressing out the extra water. Lift the quilt out into a laundry basket and take it to your washer and put it through the spin cycle. Check to make sure you don't have any bleeds before drying.