<human>: Condense the text into a few key points

I live in a college town in Pennsylvania. I am living in a house with my grandmother in which she owns. Across the street are college kids who have been walking up our driveway and through our yard every night since it has gotten warm out. My bedroom window is next to the driveway and the backyard and Their loud talking has woken me and my elderly grandmother up on many occasions. We also have trash appearing in our yard, while some of it blows down from the townhouses behind us, we are concerned some is also from the college kids. She also does not want her yard, trees, flowers etc to be ruined by foot traffic.

One night, around 10 pm, a friend of mine picked me up as we were entering his car a group of 8 or more college kids starts walking up my driveway like its nothing. He gets out of the car and kindly tells them that they are not allowed to walk through the property. They say they are going to do it anyway and continue to walk towards the backyard. He then more firmly told them that they needed to turn around and find another way to get where they were going. They turned around after a few rude comments and walked down the driveway only to trespass on the other side of the house.
<bot>: College kids are trespassing on our property sometimes during the day, other times late at night while we are attempting to sleep. We kindly asked them to stop. They continued anyway.