Well, I don't know if you ruined it, but you may not have helped it out. How cool did it stay?
I guess I probably wouldn't throw it out...
Here's from the package insert for my gh:
STABILITY AND STORAGE
Before Reconstitution – Vials of TEV-TROPIN® are stable when refrigerated at 36° to 46°F (2° to 8°C). Expiration dates are stated on the labels.