I've been called out for counting before by the floor, and continue to play rated with no issues. Maybe you're playing at a level that's below their radar, some places tolerate red chip counters. Maybe they're bluffing. Or again, maybe at that store counter catching isn't the floor's duty, and he simply enjoys watching a skilled player in action.
Just think of yourself as prey and the casino as the hunter. If they really want to kill you, you won't see them until it is too late...