I haven't seen that before, but I wouldn't be inclined to press for USD to find out.

The closest I've seen - although I've never held the terminals - is in Cancun where the hotels where I've stayed run the transaction in USD, at least for USD denominated cards. However, I believe there is a button for MXN if one is using a MXN denominated card. I don't know about other currencies. The itemized hotel bills have have been in MXN with a quoted exchange rate to USD. Since the exchange rate has been almost the same as the real exchange rate, I haven't complained being billed in USD. Furthermore, I've always used an Amex card, so there was no possibility of DCC.