Ambush
After taking the decision to leave this city and not risk breaking this barrier or something, I waited patiently for the patrolling cultivators to give up and move to the other area. I even forced myself to stay a little longer after they disappeared completely from my view, to make sure they wouldn't suddenly turn to double-check.
After waiting for a long enough, I pushed aside the rummage that enclosed my former hideout and steeped on the street. I had to be thankful for the patrol for not picking up the few interesting thingies that were lying around right on the ground, but I could only guess that for pinnacle experts of spirit cultivation realm, these bits were not valuable enough to bend their backs in order to grab them.
Since I knew about the seals placed all around the place, I could only retrace my steps back to one of the buildings I visited, while making sure that I would not stumble upon the patrolling guys.