Hi Sysfixer, though I can't provide you with an answer, I do wish you luck! I had the same situation with my mom this past week... she needs to keep her job and though the detox would have been ideal, had they found out, I think they would have fired her. Luckily, her doctor filled out disability forms and listed grief as the primary cause...did not mention anything about the abuse, which is true because although she took the pills before, she increased the dose lots after her mom died last month.
Keep your head up!