The 'F-bomb' isn't obscene anymore?

I recently stumbled across the plight of David Binner who lives in Pennsylvania.

According to an Associated Press story, Binner recently apologized for including a vulgar message on a $5 check he had to write for a parking ticket he received. Apparently, the message included the 'F-word,' and authorities charged him with disorderly conduct because they believed the comment was obscene.

The charge was dropped after he apologized.

However, the most interesting comment in this was made by the attorney for Binner who believed he would have been acquitted if it had gone to court.

"The F-word isn't what it used to be," said attorney Keith Williams. It doesn't have a sexual connotation anymore and so can't be considered obscene, the AP reported.

The F-word isn't obscene? I know that our society is getting coarser, but certainly we haven't reached the point where this word has become just another word.

Or maybe I am that much out of touch.