Rio Rancho (our town) is just on the edge of several pueblos. People on the pueblos have to drive a good 40 miles to get to the nearest grocery store here in town.
I recently found myself caught behind a three cart caravan checking out. The mama-in-charge had the EBT cards fanned out in her hand like playing cards and occasionally yelled "STOP!" at which point the check out girl stopped. The mama eyed the cards in her hand, picked out one, processed the payment, and then the checking out continued.
After she was gone, the checkout girl explained to me that they don't have many cars on the pueblos, gas is not free, so they send one person with sometimes a dozen shopping lists and debit cards to buy groceries for the neighborhood.
While I agree that bio-identified benefits would be ideal, we would have to figure out some way to handle situations like these.
Food delivery to their door would actually be an improvement.
ID the individual, and follow up with the others involved. Punishment for abuse should be swift, certain and painful (take away the Escalade!). Use some existing but useless government employees to do the job (like the "enforcers" working at the Do Not Call List, that federal jobs program for the otherwise unemployable family, friends and supporters of elected officials).