I usually don't use the required front plate. It's on the floor in the back. If I get pulled I'll just tell the officer the bumper is new and I haven't figured out where to mount it, yet.
I did have it on for a few month, however, using velcro to hold it on. I took a couple of screws and cut the heads off and clued them to the plate so it looked as if the plate was screwed on. It passed inspection this way.
