BLEEP BLOOP: I just saw an aircraft with callsign #SWA2303 (ICAO code #ACE19A) flying at 278 kt at altitude 4750 feet MSL at coordinates 34.2153,-118.6317.

That plane was making good time.

https://globe.adsbexchange.com/?icao=ace19a
https://www.openstreetmap.org/?mlat=34.2153&mlon=-118.6317#map=15/34.2153/-118.6317