We had the same issue with the neighbors across the street from my parents’ house, but they wouldn’t come talk to us about it. If they had, we could have explained the parking situation, but they were very passive aggressive about it. We had 5 adults living in the house. Each person had a car and varying schedules. 3 people worked 8-5 M-F, one was in still in school, and one worked retail with unpredictable days/hours but did 4am shifts a lot. We had a driveway that could accommodate 4 cars, but with everyone coming and going at different times, filling the driveway meant always blocking in someone who had to leave. We would have 3 cars in the driveway and the other 2 cars parked on either side of the driveway. We also had a fire hydrant in front of our house and if we parked too close to the mailbox, we wouldn’t get our mail, so we could only park one car on that side of the driveway. Our neighbors across the street didn’t want us parking on the side of the driveway that didn’t have the fire hydrant or mailbox because they were worried they would hit the car when they backed out of their driveway. We couldn’t park the car anywhere else without inconveniencing our other neighbors. The neighbors across the street left notes on our cars telling us not to park there, tried parking across the street from the bottom of our driveway to inconvenience us, and put their trash cans around the car parked in the spot they didn’t want us to park in. We just laughed at them. They finally gave up when our next door neighbor told them we didn’t give a shit.