I've seen this both in Texas and Louisiana.
For example, the Tatum Eagles, a 2A perennial football powerhouse in northeast Texas, use this logo: Image: http://media.scout.com/Media/Image/45/452513.gif
I mean, that's the exact logo of the Philadelphia Eagles. Aren't those NFL logos copyrighted?
I would think as revenue and brand conscious as Goodell and the NFL suits are, that they'd be concerned about this and taking legal action.
Just something to muse about on a Sunday afternoon.