My name isXXXXX a licensed attorney and registered nurse. I have clinical and litigation experience concerning such matters.
I am honestly sorry for your circumstances, very much appreciate your patronage, and am glad to try and help out.
Accordingly, I'm pleased to share some good news with you. First of all, you're right to be concerned and questioning the result of the EtG (Ethyl Glucuronide) testing, especially under the circumstances you're described. In fact, an unrefrigerated sample can actually ferment and yield an unreliable result. But, you don't have to take my word for it, and neither does your employer. The Substance Abuse and Mental Health Services Administration (SAMHSA) has formally gone on record disapproving the test out of similar and related concerns (numerous ones). To show your employer what the federal government says, directly from the horse's mouth, so to speak, feel free to click the following links and print out the information:
SAMHSA Advisory - EtG (Original 2006)
SAMHSA Advisory - EtG (Revised 2012)
If you have a follow-up question or need clarification, please just say the word by using "reply" to reach me.
I truly hope all works out for you.
Ben, R.N., J.D.