Customer Credit Terms and Credit Hold

Using QBDT, I am looking for a way to enforce my credit terms better. Is there a way to warn the person invoicing of the fact that the customer has exceeded it credit limit, a way to place the account on Credit Hold?  I have seen the option to turn on "do not sell to past due customers" but this is too agressive and simply doesn't allow you to start an invoice for the customer.  I would prefer to see a warning that could be overridden.  Any other suggestions?