Freezing tea? Going on a girls trip!!

Hi all! Ok, so tomorrow I am leaving on an over night then all day trip with some best friends. You will be happy to know that I've lowered my frequency to twice a day (30 in the morning and 10 to get me through the night)

I was thinking I could dose in the morning, and and make a dose tonight and freeze it, keep it cool for tomorrow and take it the next day?!?!

My girlfriends don't know about pst, but they do know I take herbal meds that I make myself for pain management, so they won't question the cooler with my tea.

Will it last till the next day? Could I chance it? OFCOURSE it will thaw through tomorrow, I won't have to take it out of the freezer till like 3 in the afternoon. So it will be in a cooler for about 16 hours....