Do you think the cops will pull you over for speeding and notice your arms are a little bit bigger than the average guys then toss the car for roids? or maybe theyll think your driving aggressively and automatically no you have steroids in the car. Taping a few pins to a car frame, shampoo bottles? come on man unless the law is allready out looking for you or your driving with a bowl or a beer in your hand, you should be ok with them in your travel bag in the trunk.