
My favorite out for this sort of thing: If your character gets hauled off in chains by the Brass Blades, remember that it is completely believable to just bribe yourself free off-screen later. The biggest issue that causes these things to potentially spiral off into OOC frustration is the lack of consequence; No one gets seriously hurt, no one gets in trouble, there's no fallout. Ul'dah gives people such an easy way out of trouble through bribery that I'm surprised more people don't just rely on that.
Remember that Sultansworn, if they are present, have little jurisdiction law-wisem to arrest anybody. They'd likely resort to calling in Blades to do the actual enforcement, and it allows there to be a tense line between those who wish to do good and those who do good, but will waive that for sufficient gil. Good guys remain good, bad guys remain bad (and free!) and those caught up in the mix get to go their separate ways.
tl;dr get arrested, bribe dirty cops
Remember that Sultansworn, if they are present, have little jurisdiction law-wisem to arrest anybody. They'd likely resort to calling in Blades to do the actual enforcement, and it allows there to be a tense line between those who wish to do good and those who do good, but will waive that for sufficient gil. Good guys remain good, bad guys remain bad (and free!) and those caught up in the mix get to go their separate ways.
tl;dr get arrested, bribe dirty cops