Personally, I'd be too embarrased to use a food stamp card.
That aside, I'd size her up and make a determination as to whether she was on the level or not. If I thought she was, I'd probably take her up on her offer.
But that's just me, I'm a sucker for the less fortunate.
She looked OK to me but it is too great a risk for someone who receives aid to chance losing it.
Losing it may have been the best thing to happen to her.