But that's where this feint and the choosing of the right person to attempt the feint on comes into play. If we choose the right person, and they really are this concerned about the mural, they may panic. In a panic, people are known to lose their heads a bit. They lose caution and they act as fast as possible, cutting corners where they can.
They will want to get to the mural as soon as possible to possibly check of the compromise, confirm what they will probably tell themselves is a lie with their own eyes.
They could very well put up several deterrents of their own--feints and decoys and even fighters to stay behind and fight us or mislead us. But if there's enough of a panic, if we can incite that much of an immediate reaction, they won't have time to knock on every door to discuss things the way they have been doing. They will be clumsy and sloppy and all we have to do, is have people who are quick enough and stealthy enough to watch for the one person they will send to confirm all the pieces are where they should be. They only need the one person, and preferably someone with the memory and intelligence to know if anything has been disturbed besides what the earthquake may have caused.