My opinion:
First of all, you've just discovered that you can stress yourself all you want until every last bit of enjoyment is sucked out of this hobby. Old timers used to cut up apple wedges and put them into small tupperware containers with their cigars for humidity. Now we have progressed to never-ending cigar accoutrements and stress inducing "Am I +/- 1 degree off?" self inflicted concerns.
I am not suggesting that you are a basket case, or that your concerns are not well founded in the long run. I am merely saying that it's okay to be off a bit in your humidity for a short duration. The cigars will recover in time, if they are even detrimentally affected at all (it's the length of time they are "off" that counts), when you are better equipped to properly (and that means properly to YOU) maintain them.
You say that your humidor had been seasoned properly. Perhaps it was. How long was it seasoned before you placed your cigars in it? An empty, or near empty, humidor is constantly fighting with its large ratio of ambient air to retain its humidity. They need the hygroscopic nature of the cigars to assist in displacing that air and to retain and emit their own humidity. In effect, the spanish cedar and the cigars join together to forge a humidity community. One helps out the other when moisture is needed or overly abundant. The humidity beads you plan to employ are more of a controlling agent. They are hygroscopic as well, but their true aim is to regulate the humidity at a desired set point. I mean, it's not like they provide their own distilled water when they become a bit low on humidity.
I personally don't like to mix the Humidipacks in the same environment of my humidity beads. I also use Heartfelt brand beads. They are silica beads, and by nature, are want to suck up all available moisture around them (until these particular beads reach their conditioned humidity level). I don't know what ingredients Humidipacks are made of. I know it's not pure distilled water, and that is the only moisture I expose my humidity beads to.
I suppose what I would do is to do as you suggested and put the cigars and Humidipacks into a ziplock bag until the beads arrived. Until then, I would keep at least one dish of exposed distilled water inside the humidor.
Expect this humidor to be one that requires constant love and care until you fill it up until at least 60%-70% capacity, if not more. Particularly now in summertime.
Enjoy, and welcome to the hobby. :thumbs: