* A New York City urologist has seen more patients demanding a procedure that eases the need to pee. * NYC's wealthiest are hoping to eliminate the need to go during the long drive to their summer homes. * Some are getting "bladder Botox" to avoid conflict over "Hamptons bladder" in the car. Traffic en route to the Hamptons has gotten so bad that it's sending some well-heeled New Yorkers streaming to the doctor for a medical procedure, so they won't have the urge to pee so often on the road. Crawling through increasingly insufferable summer traffic to and from...