i have crossed with it several times, i just informed the boarder officer. he said it was no problem. but you never know sometimes they like to be difficult and it will give them a reason to rip your car up. good luck. better your car then you by a bear i would say,worth the risk.
i have heard the best way to prepare is to a spend as much time as possible cut throat fishing,sitting by camp fires and most of all drinking jagerbombs it helps to pre lube the hip before surgery.