The article was pretty short on details. What scares me the most though, are some of the comments. if you read through them, you see supporters of the arrest justifying it in the same way someone would justify an arrest for a carjacking or something. Enough people have accepted it to the point that, "It's a law, therefore it has to be a good thing."
It's the same road our legislators want to lead us down. Get restrictions and bans and prohibitions in place in the legal code, and people eventually become accustomed to them, no longer realizing that they were just a little bit more free in a hazy past that they sort of remember. Stove, pot, water, frog. Slowly apply heat.