The steps you itemized in your original post look good. Seems like you got your bases covered.
The one thing I would mention is you probably don't need to go out of your way to question them about "resistance". Honestly, we all know what it means, and I've always felt like it's just antagonistic to press them about it. Yeah, it's a stupid word for it, but is that any more stupid than anything else about the whole screening procedure?
Also, I fly out of RDU at least once a month, and I haven't had the same kind of issues as others on this board have detailed. Of course, YMMV, but I've found they are all bark at first, but then haven't experienced anything retaliatory there yet.