APEX

I have a RESET_PSWD button on a Form that calls a dynamic action with 4 true actions defined.
 Confirm Action
Execute Server-side Code - PL/SQL procedure to generate new temp pswd
Execute Server-side Code - PL/SQL procedure to generate modal url using APEX_PAGE.GET_URL
Execute JavaScript Code - use url from step 3 to open modal
The goal of the DA is to generate a Temp Password, build a URL to the modal (passing in the new Temp Password from Step 2), and then navigate to the modal. Between Step 2 and Step 3 the value in P7_TEMP_PSWD is getting truncated due to special characters not being url encoded correctly between the request calls. 

-- package procedure to get & set url for confirmation modal (Step 3)
PROCEDURE get_feedback_url (
  p_username   VARCHAR2,
  p_temp_pswd  VARCHAR2
) IS

  vcPswdEncoded  VARCHAR2(1000);
  vcURL          VARCHAR2(1000);
  vcValueList    VARCHAR2(1000);

BEGIN

  vcPswdEncoded := APEX_UTIL.URL_ENCODE(p_temp_pswd);
  vcValueList   := p_username ||','|| vcPswdEncoded;

  vcURL := APEX_PAGE.GET_URL(p_page   => '12',
                              p_items  => 'P12_USERNAME,P12_TEMP_PSWD',
                              p_values => vcValueList,
                              p_plain_url => TRUE);

  APEX_UTIL.SET_SESSION_STATE('P7_FEEDBACK_URL', vcURL);

EXCEPTION
  WHEN OTHERS THEN
    csa.rsn_logger.log_error(p_rsn_app => 'RSNUM',
                              p_app_loc => 'rsnum_user.get_feedback_url',
                              p_log_msg => SQLERRM);
END;

I am trying to url encode the temp pswd before building the url, but I am getting the following results:
The value after using APEX_UTIL.ENCODE_URL is what I want, but it seems like APEX_PAGE.GET_URL also encoding the values so '%' is encoded again. Is there a way to opt out of GET_URL doing this? The reason why I am using ENCODE_URL in the first place is because APEX does was not encode '#' (and a few other characters) by default and that was causing me problems originally.