****, sorry that happened. My first few flights were very focused on determining how and when return to home worked because I was (and still am) very concerned about range given the differences between the standard and the others. Given that the battery has surely drained, you don't even have hope that you can get a video signal or gps back to dji go when you get near the unit.
Sadly the only advice that can be given is for next time, or those that learn from your experience.
I'm trying to determine if a phone number or perhaps an AMA member number might be worth putting on the craft in case it is found...