[Va 5.0]

Do the temp tags come back to you ? Hopefully, someone on midnights with the local PD towed it as a roadway hazard and because of the temp tags, they have not been able notify you. Check with the local PD dispatch to see if your car was on the tow board (list). Weird stuff happens. Check with the people who live near where it broke down, they may have called it in as suspicious or saw the tow truck.
I hope you get it back....