I think there's a lot of bollocks spread about the level of free speech over here. In my own home town alone we have our share of, shall we say, outspoken individuals with very pronounced opinions on religious matters and back in the day I myself have engaged them on occasion; it got to the point where, if she spotted them before I did, my darling Sam would grab my arm and steer me rapidly in some other direction. At no time has there ever been any threat of police attention, nor has anyone involved felt under any kind of sanction for saying their piece. So no, as far as I'm aware there are no legal penalties for insulting aomeone's religion to their face. A smack in the mouth just for being insulting, now that's a different matter.
At the age of five, Skagra decided emphatically that God did not exist. This revelation tends to make most people in the universe who have it react in one of two ways - with relief or with despair. Only Skagra responded to it by thinking, 'Wait a second. That means there's a situation vacant.'