Tank here with super awesome happy queue times so here's my thoughts:
Accepting your queue should...
1) auto equip you with your job and with your highest ilvl inventory set (Of from saved sets but I don't know how much harder it would be than using the same code for what we already have)
2) should automatically cancel all actions in the world.
3) fail your leves, or, pausing/ignoring your position in front of the queue until you finish