I would fluid film the frame. Cheap insurance for salty climates. You can likely find a professional near you if you don’t feel like doing it yourself.
The same thing happened to me. I ordered Method wheels through Discount Tire, and they installed the same splined lugs. Not only do they look terrible, but I believe they may not be safe, as they do not thread onto the studs past the mounting holes on the wheels.
Extended thread lugs (like...