How does a bad trip get even worse? When it gets really, really expensive. Around day three things were ok, after all, it was almost over. I thought I might escape from Canada unscathed. The contest had just wrapped up and I was joyfully skipping to my car. Since wakeskaters are all 19 and can't rent cars, a few of them had asked me for a ride back to the hotel. I set my camera bag, tripod and water housing on the ground next to my car so that the teens could put their boards and bags in the trunk first, then sat in the car. I half forgot about…