I had the same problem when living in Virginia, with a PA license and D.C. license plates! I was taken directly to the police station. I did not have my car impounded but did have to pay the fine in cash, on the spot. I have forgotten the fine, but it was substantial as I recall.

Although I hated the fine and having to call a friend for the money to pay immediately, it WAS my fault and I didn't hold anyone else responsible for it.

Sorry this happened to you so close to a holiday.

Lesson learned I assume?