WooCommerce conditional shipping notice based on product and billing state

rscsn.php

add_action( 'woocommerce_before_checkout_billing_form', 'rs_conditional_shipping_notice' );
  
function rs_conditional_shipping_notice() {
   echo '<div class="shipping-notice woocommerce-info" style="display:none">The x product is from supplier x and you can find it on this <a href="#"> link</a> </div>';
}

add_action( 'woocommerce_after_checkout_form', 'rs_conditional_show_notice_shipping' );

function rs_conditional_show_notice_shipping(){
	
   $product_id = 37; // can be extended to include more IDs. use array
  
   $product_cart_id = WC()->cart->generate_cart_id( $product_id );
   $in_cart = WC()->cart->find_product_in_cart( $product_cart_id );
  
   if ( $in_cart ) {
     
   wc_enqueue_js( "
  
      var stateCode = 'CA';
      selectedState = $('select#billing_state').val();
 
      function toggle_upsell( selectedState ) {   
         if( stateCode.includes(selectedState) ){
            $('.shipping-notice').show();
         }
         else {
            $('.shipping-notice').hide();
         }
      }

      toggle_upsell( selectedState );
      $('select#billing_state').change(function(){
         toggle_upsell( this.value );         
      });
  
   " );
   }
}