If it is designated residential parking, then she will be charged (rates down our street are £25 for the first car, £40 for the second per year, and if you have a driveway, then you have no entitlement to request a permit). I live near a hospital, and staff and visitors were using the street for free parking. I had no great thoughts about it either way as I also work at the hospital so don't have to move my car during the day anyway, and it seemed a bit cheeky to say that my colleagues couldn't park on the same road I do.