Similar thing happened to a friend of mine. He's got 2 advanced degrees but can look a bit scruffy and he looks a few years older than his wife. One day they were in the south somewhere and the cops accosted him. Someone had reported "an old man walking with a young girl who was eating a bag of candy." It was his wife (who is only 3 years younger than him) and indeed she was eating candy. Apparently the local do-gooders thought he lured this young thing with candy..... Give me a break!
As much as I hate to say it, if you dress the part, they leave you alone. In college I had long hair for a few months. Crossed the US-CA border 4 times with long hair, was searched 3 times of the 4. Since then, I've crossed probably 80-100times and been searched once.
"True, your boat will outperform mine to windward, but my boat will always outperform yours at anchor." --MedSailor