Tesla's self-driving tests in Austin, Texas will be geofenced to the 'safest' areas, according to CEO Elon Musk.The company will prioritize safety by only allowing the vehicles to navigate intersections and areas where they are highly confident.Initially, Tesla will deploy around 10 Model Y SUVs with 'unsupervised' Full Self-Driving software, monitored remotely by employees.Musk emphasized a cautious approach, starting with a small number of vehicles and scaling up based on performance.