It's always mildly annoyed me: the way the cars block line of sight into the parking lot at Nicca's/onto Bishop street here (Esp. the loading trucks for Nicca's. They have loading spots in their parking lot.)
However, when a local officer almost took me out with her car door here yesterday, I decided I was officially fed up. Come on people. Always look before you open your door, and if you are going to park in a bike lane, look twice. If you're going to park in front of a busy parking lot--well, don't. and if you need to make a delivery to a place which has a parking lot, try using the parking lot, instead of parking your big truck directly in front of the parking lot so those of us coming by on bikes can get hit.