That's great. Sad at the same time... but great. Sad because they think you are a LEO. Nothing wrong being a LEO... just that's their first thought and if it makes them happy... then so be it... but at the same time, I hope you let them know you are not one, if they ask. I would hate to hear someone be arrested for "impersonating" a LEO. You know how the media can make a story out of it.
Hey, even though I go in my uniform as a fire fighter 90% of the time, they NEVER give me a free drink... go figure?