The best eitza is to reply respectfully, i just wanted to mention that i ran a tag on Shabbos shoes recently, and it seemed that most poskim assume that kovoid shabbos applies only to clothes not shoes, so you might be better off being mekayem a mitzvas asseih de’oiraysa of kibbud eim, and scrapping the shoes. [unless it is paticularly important for your husband or your sons, or something.]
You can find my post by looking under Shabbos.