Businesses (and government, especially, for that matter) are obligated to take cash *for debts*. A business is perfectly free to define what they deem acceptable for *payment*, however. Wampum, sea-shells, old Reader's Digest, whatever.
This guy *owes* them $526 bucks, so he is free to pay cash. I'm NOT advocating what this guy is doing, just pointing out the difference.
>>>This guy *owes* them $526 bucks, so he is free to pay cash.
True, but, as has been plainly demonstrated elsewhere in this thread, the business is free to refuse to accept is cash payment in the form of pennies, or, if they do accept, they are within their rights to recoup the added costs of accepting and processing the payment in pennies.