Could be drugs/ intoxication so they didn't want to wait around. I'd call around body shops looking to see if a damaged tow truck shows up for repairs. Might be a good way to catch them.It isn't a great time to shop for another Rogue-if that is what your wife likes. But you have insurance-with a possibility you might find who did it. It could be worse.
I'm going to assume the tow truck is probably owned by some "fly by night" outfit/individual and not a normal tow truck company. That would explain the "hit and run" situation.