Not surprised. There sure are some strange people in CA.
I don't imagine not getting a "prize" will deter many. While coyotes make good target practice, shooting is a pretty inefficient way to control numbers. Unless you happen to see one working his way into your calving ground.
Trapping (toe hold traps) and snaring is more efficient and profitable. Selling to fur buyers is enough of an incentive. Makes a nice little second income. Probably can't do either of those in heavily populated areas where people let Fido run loose for exercise.