It appears to be that this mod does support teleporting while in a car, which is the kind of mod I'm looking for. At first I thought the game was broken because when I tried to right-click teleport the game reported "No valid teleport position found within the teleport radius. Please select another location or you could try increasing the search radius in settings. The hive mind discourages this practice as it will reduce the accuracy of your teleport landing points."; that message doesn't make sense when standing right next to the car does work.