postmodern cat calls?

As I was walking home from a haircut just now, some guy leaned out the rear window of a car and said, "Hey, lima bean!" I can't decide if it was a compliment or an insult. For the record, I'm wearing a bright green shirt.

I think it was supposed to be a compliment. Are cat calls postmodern now? Isn't the point to let the woman know you think she's attractive rather than have her scratching her head as to what just went on?