The average cop is going to believe the bag checking to be an unbeleivable, and probably futile, nuisance thought up by deskwarmers and political mucketymucks for the express purposes of B) making a show to the public and A) giving the working cop a royal pain in the ass. It will take the rawest recruit to see this as anything but meaningless makework.

It's really going to depend on your route. I imagine the major hubs are going to see a lot of bag checking. My route? Saw no cops.