Because the cops can simply pull you over for a bogus traffic violation, search you, seize any cash you have on you, and send you on your way. Now it's up to yo

Because the cops can simply pull you over for a bogus traffic violation, search you, seize any cash you have on you, and send you on your way. Now it's up to you to prove that your $3000 in cash was legitimate. Costs more than $3000 to fight the case, so what are you going to do about it? The cops just stole your $3000 and there isn't shit you can do.