There was a similar case about a decade ago in Glasgow
A cop brought "verbal abuse" charges against a footy fan at a Derby who used the "F" word - the judge just asked the cop if ever he'd used such expressions himself, yes, ah, case dismissed.
I try to not swear, mainly because there are other many other words which tend to be more effective, but I would recommend that folk look out the marvellous "Usage of the Word Fuck" - variously ascribed to Monty Python, George Carlin, Dennis Leary - but apparently the most familiar audio file was actually recorded by the Disney voice over guy Jack Wagner.