I've had a few bike-related run-ins with the police here and they've been just as weird, alhtough I've never been taken down to the station. I dislike the way that they and people here in general try and embarrass you for not being as neat/tidy/clean as Japanese are. An intern at my work goodbye party last night pointed at my (stained) yellow rucksack and said, It's dirty, smirking. Another time at a house party dozens of people commented separately on the hole in one of my socks. Okay, so maybe foreigners don't live by the Not mine, touch rule, but we do live by the Life is too short to care about how dirty/messy some things are.