The only problem I have with this is that my father is in a wheelchair and, very rarely, I have to park in a non-handicapped spot while driving him somewhere. When I do, I try to park far enough to the left in the space I take that it leaves plenty of room for the wheelchair. However, a few times now that a car has parked too close, I have simply pulled the car out of the space and into the lane, long enough to get my dad back in. It only takes me a few minutes (because I'm not exhausted from running around a car a couple times), so if anyone human has to wait, they don't get impatient.