[Highland Park] Odd solicitation?

A man came to my door Thursday evening, waved a can of Air Wick air freshener at me and said something about "working in the neighborhood" and did I use this kind of stuff? My impression was that he was trying to sell me something but he had no sample bag or papers. When I told him no, and that I was busy, he seemed to want to linger. Luckily, my rather large dogs were both agitated so I told him I had to go. He was white, bald(ing), 30's-40's wearing khakis and perhaps a dress shirt. Anyone have a similar experience? Laurel on Cordova Road