If the egg police get after me I tell them they are hatching eggs and then if the livestock people get after me I tell them they are eating eggs. I sure hope they don't ever show up at the same time.
If the inspector is rude next time, you can either call their supervisor (I'm guessing food inspectors have one?) and politely and calmly place a complaint, or, you can look them in the eye and say, "excuse me sir/ma'am, there is no reason to be rude". I got really good at that one when I used...