edit your ~/Views/Shipping/Restrictions.cshtml in project Nop.Admin with few jquery will prevent to loose business.
<script type="text/javascript">
$(document).ready(function () {
$("tr:not(.headerstyle)").each(function (e) {
var t = $(this).find("input:not(:checked)");
if(t.length==0)$(this).css("background-color","red");
});
});
</script>
let's change CSS style and behavior with a .click on UI
hope this helps.