What's more disturbing is the account manager at the dealership not knowing. Just two people passing a contract back and forth, and neither one of them can make heads or tails of it.
I would bet that most people who realize a potential customer is a SovCit nut are much less likely to want to do business with them. The odds of ending up in court are so much higher.
A lot of people don't seem to know what they are. My friend had some as neighbours who of course got evicted, and asked me what the weird sign they tacked on their unit door meant. It was full of sideways writing, a red thumbprint and a Gadsen flag stamp, so I explained it to him. I've talked to a few friends at work about my interest in them and none of them knew what they were.
90% certain the intent of the original contract language was meant to clarify that customers must pay in US Dollars. They will not accept any foreign currency.