May I suggest that sometimes tone gets lost in translation ....
The LP guy may have in-artfully been trying to say, i always have to do this, otherwise someone could be trying to steal luggage, not meaning to suggest you were trying to steal luggage.
Remember, My Cousin Vinnie? Tone can be misunderstood.
Seems to me the real issue is that they checked you into your room, you went into your room, and someone moved your luggage without telling you. That's way more significant than anything the LP guy said.