http://www.eqvintage.com/atlas/antonica/highpass-hold/
Found this off of that website.
Description
Highpass Hold lies along the main travel route from Qeynos to Freeport, and is a mountain pass guarded as well as possible by the valiant guards of Highpass Keep. Orcs and gnolls have patrols that run up to the foot of the Keep itself, and the brave Highpass citizens have carved out their homes out of the gulleys and nooks.
That is pretty much the only thing I can find that says the orcs and gnolls ran to the guards, but it doesn't give a timer or anything. I was just basing that off of memory.