Yeah imagine you have a medical emergency or a fire or something and EMTs/firefighters come in and get caught in your boobytrap. Very not cool thing to do, those people are trying to save your life.
edit: if your concern is actually people coming in while you sleep you can get very effective barricades/reinforcements for doors and windows that can buy a lot of prep time.
Have you ever met any Evangelical Christians?
I was raised Baptist and the rebuilding of Temple Mount/the Third Temple (destroying the dome of the rock in the process) is religious doctrine. They believe it has to happen for the messiah to return.
They eagerly await WWIII in the middle east as part of their end times prophecies. I've met dozens (easily) who'll get there in a conversation, but you have to talk to them as a believer.
Then you have to run a restaurant which are notoriously low-margin anyway. Just make fake a bunch of fake sales so the money comes out clean, needing to effectively manage a restaurant is a lot of overhead for someone who may have no interest in running a legitimate business.