The trailer ballmount can be left in the hitch receiver as long as it does not obscure the licence plate. To prevent theft, Speedy Towbars have hitch pin locks available which replaces the standard pin and clip. Alternatively, you can remove the trailer ballmount and store it in a secure place and use a hitch box cover to provide a neat finish on the Towbar and at the same time stop dirt and water readily getting into the hitch receiver.