FYI - The birth date was always adding as 2036-11-30 00:00:00 (showing at 11/20/2036). To remedy this, around line 311 where you assign the dob to the query I change this:
'customers_dob' => $cInfo->customers_dob,
to
'customers_dob' => zen_date_raw($cInfo->customers_dob),
and that seemed to fix it.