ouch....
I don't spend too much time around here, and when I do, I mostly lurk. I should lurk more. i keep missing cool limited releases.
Anyway, regarding the issue the OP had: for future reference, if this happens, try this:
Get a nail. For these size screws, a finishing nail works best, and gets hot faster. You'll also need a pair of pliers, and a source of heat. A Bic lighter is sufficient, but if you have something else, that works, too.
Heat the nail. If you're patient enough and have a good enough source of heat, get it so hot the tip is starting to glow.
Quickly stick the tip into the socket of the screw, and hold it there 10 to15 seconds.
Use the torx and try turning it. If still stuck, repeat the above procedure.
I used this to get a red-loc tited screw out of ... man, can't remember the name of the maker. [edited to add: it was a Greg Lightfoot folder] But, it took about 4 passes to get the clip screw hot enough to loosen the red loc tite. But it worked. And neither the knife, the screw, nor the torx bit were harmed.
I've also used this same method to get the front night sight on a Glock removed, after the tritium had faded to the point of being useless.
If you have a soldering iron, it will go even faster. But, it gets hotter, too, I believe. So still possibly risky.