Snap a pic I guess, there are many ways to game this either way, but if people start catching stores do this then it could lead to issues for the store.

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morkalork a day ago | parent [-]

Could it? A gas station doesn't get in trouble if I show up with a photo of yesterday's posted price

	▲	pixl97 12 hours ago \| parent [-]
		I mean if you have a means of validating that a picture was taking at a particular time, then moments later your receipt shows a much larger price then we typically call that evidence.