Are any of you (aside from a few) serious??? Do any of you have a clue (not a put down) of the process or procedure involved? This is NOT a small claims or local court action. This is the exclusive territory of the United States Federal Court system.
There is a basic procedure to the dilemma.
The easiest way is to talk with your lawyer and have that firm guide you through it...at least the first time through. Hopefully s/he has a clue about intellectual property law as that is a very specialized field of law. If not a referral to several IP firms is in order.
The lawyer, (or even if you are a DIY'er) will first start out with a C&D (cease and desist) letter (a prerequisite to any suit or form of action). That will immediately grab their attention and possibly bring them, humbly, to the negotiating table.
Now is the time to decide what constitutes justice.
Have them strip the wrap and never reproduce your art again (via written agreement which I guarantee they will sign and assent to)? That could be justice.
A demand to strip the wrap PLUS pay you a reasonable fee for the art (your IP) is fair. That along with a stipulation they are not to ever use that art ever again.
Sue them as well as their wrap provider and all individuals involved in the piracy (you really should name everyone who participated in the chain of events otherwise your award may not get paid...one of them or all collectively should have the bucks to pay you your award PLUS your lawyer's fees plus all costs)?
Only you can decide.
In the mean time, do not make any threats. Always act composed and in a business-like manner. After all this is business and nothing more. All communications and interactions should be in writing - never oral if you elect to DIY. If you engage the services of a lawyer then sit back and let whatever unfolds happen and get on with your life. Any direct inquiries you have from the church org. you merely politely refer them to your counsel.
Let me inject a personal note here. As many other members have stated or alluded to, in this thread and countless other threads, Christian churches, as customers, are sleazy...plain and simple. Personally, any business that wears their religion on their sleeve (or business card/letterhead/truckside) I avoid like the plague. In the end, they always try to screw you in some way no matter how slight. Be it a church or an individual man (woman?) of the cloth they all should be treated, business-wise, like any other enterprise or human. Hold them accountable. If you don't who will?
Soap box mode off.