If it hasn't been said, I hope you went home and put a little charge in the battery. You can quickly degrade the battery, if not brick it if you leave it on empty.
Also, I am not a "pilot error" pointer but there were a myriad of things you could have done to have had an easier time and not had to rely on luck.
It's a good thing you live in sticks so you had a very good chance of a random safe landing.
However, you could have returned home just as you got there. There is no worse flier than a panicked one. You could have left it in sports mode and just watched the map and fly it back. You got scared and initiated an RTH and my guess is you did some movement that caused you to lose more battery. If you got there with over 70% you should have been able to get back unless the wind was so bad that you shouldn't have been flying in the first place.
Also, while flying at night, you should be a skilled flie. You are essentially flying what's called "instrumentation" because you are relying solely on your instruments but that seems above your skill level at this point, no offense but we all have to learn.
Then, once you felt the need to get in the car and find it, all you had to do was get somewhere near it, create a dynamic homepoint (reset the honepoint by going to the MC settings and engage a new honepoint wherever you now are) then re-engage the RTH.
Also, how did you not know where it was? You have a GPS marker that you can drive up to. Go to the blue dot.
Hope you learned a couple lessons, as you got lucky but hope you learned a little about flying your UAS at long distances. You might have had 3 before but apparently, you were not ready for instrumentation, long range night flying!
Fly safe. Hope I didn't come off as pompous. I am certainly not the kind of guy to say that but this was petty egregious.
Your title says "beware" but this is really just a warning to fly within your knowledge. You weren't wrong for going far, you were wrong for going far without the knowledge on how to properly do it.
It's not just knowledge either by the way. If you are panicky, you're not flying well even if you are a good pilot. Go listen to Sully land in the Hudson. Seriously, go listen to that audio. That's how you ncan need to be during a "crisis". My method when I'm in a scary situation is to just come to grips with a lost bird and anything at all back is gravy and I've yet to crash an advanced bird.
Off soapbox.