Wheel locks don't mean it's impossible to steal, they are more of a deterant(i think that's the word) 2 different locks isn't really any better. If they really want your wheels, they'll get 'em even if it means taking your whole car.
All wheel lock companies have a master set available to repair shops, dealers, etc. Pretty much anyone can get their hands on a set. Thiefs can also use a hammer & chisel to remove wheel locks, its a matter of minutes.
We had a customer bring a car in with 4 different wheel locks & no keys. To remove them we took a 19mm socket & welded a pieces of steel across inside. Then grooved the wheel lock to match ghetto fab socket, removed all 16 in less than 15 min.