I was trying to take off the absorbant pad while my chicken was still frozen, and it broke
Don't worry, the materials in those pads are non-toxic. The absorbent material is silica (purified sand) or plant cellulose, and the plastic is thin and non-digestable. So if a small amount sticks to your food it's no big deal, just make sure it's cooked through as that will kill any bacteria in the gel that happens to be left. What I would do is let the chicken thaw and then rinse it thoroughly.