I don't agree.
*Disruptive* is an ambiguous term. Racial epithets, vulgar language, etc are disruptive.
'Don't drink and drive' is a national slogan printed on everything from shirts to bumperstickes.
It's his own guilt over his own actions (and getting caught for it) that's the problem
The girl is just a convenient whipping post.
Only time will tell. Hopefully, we'll be informed of the results when they come down.
I think the first paragraph indicates that the shirt contained more than one slogan. We're not told of the others. I'm afraid this indicates that the media went for the "sensational" headline and left out other relevant data.
I think this is so because it's been 6 years. I think this is so because the girl is an 18 year old Junior in High School. I think it's so because the follow-on Tshirt included a too cute DUI reference.
Time will tell.