I am in Wisconsin, which requires a front plate. I can't recall seeing a front plate on an NSX ever (in the flesh, I have seen pictures and they are hideous!), and I see more than you would expect with Acura of Brookfield just down the road.
I don't run a front plate on my car and have not had a problem in 5k plus miles of driving.
If I got pulled over, it is hard to say what I would do. As with any traffic stop, being polite is very important. If I thought the officer would let me go without a fix-it-ticket, I would probably try to convince him/her to do so. If they were hell-bent on giving me a ticket, I would say very little and get a temporary front plate holder to satisfy the ticket.