Generally when I'm cutting Foley, if someone walks off screen or out of a room I'll cut at least a handful of footsteps to follow them out - their sudden absence would certainly be missed.
I'm feeling a little more iffy when it comes to cloth Foley though. Cloth is far less a discrete sound than footsteps and in my mind is thus harder to place when not keyed to a specific visible action.
My question to you all - do you let cloth movement continue for off screen action or does your cloth Foley go away once a character has left the screen?