I guess, strictly speaking you didn't have the owner's permission and should have asked. Although I suspect many wouldn't see it a necessary. Probably best to take the life lesson for future reference. Irritated or not, that's an excuse; permission is still permission and the instruction was to sling them. Put it behind you. Can't win them all. Ought not be a big deal. Come spring you'll feel far less emotional about being spoken to about it.