Isabela's not the sort to get herself involved with things until they directly affect her or if she has a change of moral heart. She might take advantage of the chaos to GET SOME STUFF from those closed shops but with enough nudging and from the right sort of people she may be inclined to help out.

She's a close range fighter, but she does have stealth on her side.

ALSO IF YOU WANT YOU CAN TOTALLY CATCH HER IN THE PROCESS OF TRYING TO BREAK IN AND LOOT A SHOP.