New Investigate Mechanic for Zeds (how is it structured)?

[SystemiK 366]

I'm not really clear on how this mechanic works. I managed to lose 3 Z's by ducking inside a house and it seems they must have lost their line of sight at the entrance. It seems to have worked as intended and the 3 of them are now blocking the doorway but not entering the building.

Out of curiosity, I just proned in the dining area of the house and waited to see how this played out. After approx 30 minutes, the 3 of them are still aggroed in the doorway (it almost appears as if they are all stuck in the doorway). I can not leave as they are all stacked up at the exit, nor do I have a weapon to shoot them with.

How is the mechanic supposed to work for this situation? I had imagined that they would de-agro at some point and walk away but since that is not happening, I see only 3 options here.

- Bum rush the doorway, but I'm pretty sure that my character model will collide with the z's and I'll be unable to break through the "blockade"

- Starve to death waiting (shitty option)

- Switch servers (really shitty option)

Anyway, just trying to figure out this new investigation/LOS mechanic and hoping to hear any input. As it stands, I have seen the Z's stop at the last seen location of my character, but is there a further point when they lose interest and go back to their wandering or do they just stay rooted the the last place you were seen?