This is such a tough call.
Just my two cents: if I found a wild animal that was obviously in danger where he was, from whatever threat, especially human/motor vehicle threats, I might make as large an enclosure for it as I could, and keep it until I could find a way to return it to a safer "wild" area than the one I found it in.
Why should I let it go into an obviously dangerous place that is too close to people and machines? Like sending it to its death...I could not do that. If it was an illegal animal to keep, I would call the relevant authority, and hope they would relocate it in a safe place.
Yep, me too. We find a lot of Eastern Box Turtles in the middle or right on the edge of major highways here. Cars & trucks swooping by at 70 mph, and they venture out & sadly get squished. If safe, I always stop & pick up the EBT and release it in a massive nature preserve with ponds & streams & mixed forest land that is usually about a mile or two from where these torts are found. Releasing them in a safe area gives them a fighting chance.