Fruit trees

So I always see students picking from the fruit trees throughout campus. Today I decided to pick a kumquat. A random lady passed by with a staff badge (didn’t see her name or department). She saw me and said “you aren’t supposed to pick at the fruit trees on campus” I ignored her as I was already leaving. Well she wasn’t done and said “wow those aren’t even good.” As I was leaving I saw her watching me, so I ate half the kumquat & told her “they’re good” and finished the rest & continued walking by her. She was PISSEED but stunned so didn’t tell me anything. So are we not allowed to get any?? The fruit trees are all throughout campus & filled with fruit so I don’t see why the students wouldn’t be able to pick some.