Shares of Uber Technologies Inc. (NYSE:UBER) and LYFT Inc. (NASDAQ:LYFT) dropped in Thursday’s pre-market session after Tesla Inc. (NASDAQ:TSLA) CEO Elon Musk announced that the company’s new Cybercab is being tested on San Francisco streets, exclusively for Tesla employees. What Happened: Benzinga Pro data revealed that Uber’s shares fell by 2.12% and Lyft’s by 1.54% after Musk’s announcement. During Tesla’s earnings call, Musk shared that the ride-hailing feature is available for Tesla employees in the Bay Area, using a development app with a safety driver. The software for this service is a…