BC Entities field kit left in hot car.. is it still good??

So a year ago I was told I was going to have to take a drug test at work. On May 5th of 2012 I bought the synth urine kit by BC Entities at a local head shop. Well i ended up not taking the test and kept the kit in my closet. Then on march 15th 2013 i was hurt at work and had to go to the doctor and assumed that i had to take a test for a workmans comp claim. again i ended up not using it. however, i left it in my glove box for 3 months. it was in there while temps in the car reached anywhere from 100-120. It was in the dark glove box the entire time and in no direct sunlight. so my question is:
Is the kit still good or did the high temps possibly change the composition slightly. I just got hired for a new job and I 100% have a test on tuesday next week. Should i go get a new kit or will this one work.
Thank you in advance.....

If you are unsure of its useability, you can always test it with a validity test strip to ensure that the urine constituents (creatinine, pH, specific gravity, etc) are within satisfactory ranges. If it were me, I would run the test on the grounds that the product is more than a year old.

The validity test kits are inexpensive and are found online by doing a Google search for "drug adulteration test kits".

thanks. good idea!!