Here the police would care. Theft is theft and if they're stealing from you, they're probably stealing from others.We have been selling cut flowers at a roadside stand in front of our house for thirty years. It's the honor system and If we had to stop what we're doing to interact with every customer then it wouldn't be worth the trouble. You have to get used to being taken advantage of by thieves or the stress will eat you alive from the inside. Keep telling yourself that most people are honest. We figure that 10% loss is unavoidable. When it gets to 30-50% loss we just quit for a while. Cameras show it is usually repeat offenders. You can have video of the theft along with the auto license plate number but the police just laugh and will not do anything. They say we are crazy to trust people to put the money in the box. Try to minimize the impact by only putting out a few dozen at a time. Put a lock on the cash box, remove the money often and hope the whole box is not ripped off the post and stolen more than about once a year.