Something to keep in mind about the commercial glow sticks - they have a very definite shelf life. We used to put them in aviation survival vests and found that they deteriorated after a couple years, especially if the foil packaging was damaged. Also, the colder the environment, the longer they will last, generally. I attended a winter survival course some years ago, and in the group shelter we used, some glow sticks that had been used for the prior class two weeks earlier were still giving off visible light.
When in danger or in doubt, run in circles, scream and shout... R.A. Heinlein