Might have been a great opportunity for an airport LEO to have a conversation with them, considering the nature and content of their comments, as well as their reaction to your request, which could've been considered threatening. After all, they're there at the pleasure of the airport and can be replaced/removed.
Sorry to hear about your experience. No, you're not a prude. Don't ever let your sensabilities by dumbed down by such crudity.
Pat