We're having some building work done and the builders have been parking (two cars) on our street (no lines/bays just general open street parking). Neighbours have come round to complain at us.
We do have a driveway (from the garage to the road) long enough for two cars which the builders could have parked on, but in doing so they would block in our car (in the garage), and mean we have to get both builders to move their cars each time we go in or out.
The builders are only there weekdays and are gone by 4pm before most people get back from work, but apparently this neighbour was annoyed as they had a party and there wasn't enough street parking for all their guests.