Hi, can you not still get to Carceburg? Here's my tip: get to the Carcen Mine but turn right when you see the minecart, there must be a dark passage which gets you Motel Shower floor, then exit the Motel through Jennys' room window (from here you can only get in and out the Motel by the window), get to the bar without getting caught by GAG drones
Good luck