Some alien crashed on this planet about 4.5 Gy ago so made some proteins and nucleic and released them on the planet. Once it started recombining the alien wen

Some alien crashed on this planet about 4.5 Gy ago so made some proteins and nucleic and released them on the planet. Once it started recombining the alien went to sleep or maybe to play some video games while waiting for this process to develop space flight and send some probes that the alien's buddies might encounter and read the message encoded in the DNA: "Hey, could you please swing by and pick me up? My ship got a flat and I don't have a spare"