It's tough here in the city. In lots of situations, you need to pull your car all the way into compact spots if you don't want to get a ticket or have your car get sideswiped. I've wanted to put a Reiger lip on my car for a while now, but I just know it would be torn off in the first week from a curb, driveway, or bad pothole. I scrape my front bumper on enough stuff as is, and even have to angle my car going up some of the hills (particularly in Pac Heights) to keep from scraping, which isn't fun when there is lots of traffic. I feel your pain
But, then again nothing feels better than being the first car in line to take those sweeping curves through Golden Gate park on 19th Ave -> Park Presidio at 65mph!