What's interesting in all of these logo struggles with high schools/other amateur groups and college/pro teams is I know of at least one school that allows for the legal use of their logo or at least did at one time.
I worked as an administrator at a school that is the Cougars. They use the Kansas State power cat as their primary athletic mark.
At the time, K-State actually has an application process for schools to request permission for use. They have since revamped their website so I am not sure where the application/information is located and/or if it's still in place.
Gosh I bet 75% of the teams in Ohio use some variation of a college or pro logo.
My high school was in a conference that had versions of the Louisville Cardinals, Florida Gators (F), Dallas Cowboys, Wisconsin Flying W, Minnesota Vikings, Michigan State.
The school my kids go to uses the LA Ram helmet, logo and word markings on all their logos/uniforms/spirit wear.
Not saying any of this is right, but it consumes a lot of resources I am sure to keep track and shut them down.
The worst instance I have ever heard was when Susan G. Komen came after a little girl in Minnesota who did a Kites for the Cure or something to raise money for breast cancer research. It was a grassroots effort that probably would have yielded a few hundred dollars.
Ohio-The State University