Fixes #522

src/main/java/com/plotsquared/bukkit/BukkitMain.java

@@ -293,8 +293,11 @@ public class BukkitMain extends JavaPlugin implements Listener, IPlotMain {
                                     }
                                     Location loc = entity.getLocation();
                                     if (MainUtil.isPlotRoad(BukkitUtil.getLocation(loc))) {
+                                        Entity passenger = entity.getPassenger();
+                                        if (!(passenger instanceof Player)) {
                                             entity.remove();
                                         }
+                                    }
                                     break;
                                 }
                             }