Eventually, the three of you decide to get dressed and head on over to the park and see what's up.  The entire area is lined with stanchions, rope crisscrossed between them, and large signs proclaiming the area condemned by the Kingdom and promising execution to any that try and trespass.  Despite all the warning signs, there doesn't seem to be anyone standing guard, and the barricade is easy enough to just step over.  You can see a single, lone guard patrolling through the grass, and unfortunately he seems to be keeping a very careful eye on the part of the park where the old tattoo guy told you the herbs were.