Don't know about the store hours, but yes you can pay cash on the bus if you have the exact change. The bus will take dollar bills, but no change.
What are the hours on these stores? If I come in around 9 or 10 pm will they be open? What if the flight us late and the stores close? Is it possible to pay a cash fare in the bus and then get a metro card at the subway station?I'm use to just buying it at a machine and going on my way.
Edited by KevinKorell, 18 December 2010 - 07:19 PM.