Whether profanity is allowed to be displayed on a bumper sticker, t-shirt, etc. in public varies from state to state, city to city, and county to county. I'm wondering if the sticker was actually profane (I'm guessing anything above a "damn") or if it was considered profane because it was reffering to the President in a disrespectful manner. Either way, it is in bad taste to display anything with profane language on it and it seems the officer was being a little extreme by trying to arrest her. As mentioned earlier, a fine would have been enough. It all just sounds silly