The pros that attend these sales for a living talk to each other and if the manager of a facility is picking through the units the pros will get the word out in a short time.
We use cylinder locks that can sometimes take a long time to open so we do open units in advance, take photos and lock them with padlock until sale. The 8 to 15 pros that attend every one of my Lein Sales know the units are untouched. Well, I did remove the stolen ATM from one, oh yea and the lady's husbands ashes from another.........