Flip the script. Have a bunch of adventurers hired by a guild to take out a dungeon full of “monsters” goblins, ogres, etc. See how long it takes before they realize its a mall/bazaar or that the guild wanted it gone because the mall/bazaar owners refused to capitulate to the guild.
Also, “usually trouble”.
Have rarely seen anyone have trouble crossing there. Unless it’s Tesla, BMW or Audi SUV, then just let them go pass, because they can’t drive anyways.