Late night ethnic music, soft tacos from ingredients of which your were previously, maybe thankfully, unaware, a view of a portion of the local populace whose earnings may be of questionable legality....the "real" autentico Cd Mexico....Plaza Garibaldi!

Go in a group, maybe even hire a cop to go along - cheaper and a better solution than you might imagine in a land where a car w/a driver may rent for little more than just a rentacar.