i have had my truck for two years and I have never been hassled about a front plate. I took mine off and put some really nice polished bolts up front that fit flush with the bumper and look good. Now I have the denali front end so it doesnt matter anyhow, but when I had the original front end that is what I did and it looked good.
Most cops look for other reasons to pull you over to make it worth their trouble, they wanna get you when they can get you good, like using bags while driving, dragging, or speeding, things that they can really nail you for.
I wouldn't worry too much about the front plate, and from what I understand, if you just show them that you have the license with you, they generally dont give you trouble.