I dunno, I think KY's wisened up since the early days. I don't think he'd coast as scum this way. As for Irish being redirected to himself, let's recap. He's placed a trap on Orange, me, and FRAYDO. One of these traps have sprung back at him. As for myself, I've used ##protect every night thus far. Each night I was told my target didn't need medical attention, except for the same night I took the crowbar. It's worded differently, but to me it still seems as if I didn't need medical attention (I'd targeted myself). I can ask for clarification if need be. Given that's the same night Snipe died, I'm inclined to believe it's a non-issue.
KY claimed that Shade has immunity from rolecopping. If KY is telling the truth, then Shade could also be immune to traps. In fact, he may be able to send a trap right back at the originator. It's a much simpler explanation than this bus driver skullduggery, hence why I'm hesitant to believe he isn't just whipping up an elaborate cover for himself.