Yep, nothing to worry about at all....
If you don't think the government is scrutinizing everything
every asset of our lives, go ahead and make it easier on them. You use a credit card to buy ammo/guns, a paper trail is created. Shop on-line same o same o. Heck, even using Google like I did created a "signature" if someone's looking.
Even the oh so clever "I lost them a boating accident" is just twisting the tigers tail. You'd be the first place they'll look as obviously you have something to hide.