It happens to the best of us. You need to drive deep into the heart of downtown, so you jump a block west of East Bay Street to bypass all that Market Street nonsense. Things are going great until, bam, a sun-scorched cop sending Ohio SUVs toward the Carnival Fantasy knocks you off course. You're a local, you should know better, but here you are, yelling at left-hand laggers as you idle past Wet Willies. You make a note: Next time, be sure to heed the cruise traffic direction signs.