Any covers/locks over the ball hitch only prevent the use of a standard ball. Those willing to steal often are also willing to attempt unsafe means of hitching. That's why chock-locking the wheels is a better idea.

Any method that is used is never a 100% deterrent, however if you can make it plainly apparent the trailer isn't going anywhere easy thieves (if time constrained) will leave the trailer alone. I would say that having a motion-sensor triggered surveillance with notification alarms to your computer and phone will help.




Collecting anything keeps you young at heart!