I live in a rural area and mostly my neighbors and myself keep to ourselves. There's one couple who are the exception. They don't work, they live in a ramshackle trailer and rarely have a functioning car. About a year ago when their car broke down they started asking me for rides. At first only when they really needed it, to get groceries or to a doctor's appointment. I mostly always helped out, but then they started asking more frequently for less important things like to the liquor store. I started having to ask them for gas money, but couldn't figure out how to refuse, they can see that I'm home after all. Over the past year, they have also frequently asked to borrow lawn equipment and the occasional request for sugar, dog food, etc. 

In August, they stopped for a while. I think they knew that I was out of town for a time and that I was busy with work. In October it started up again and I've ignored every call and text. When I drive by their house I smile politely, but don't slow down. 

I feel like I'm acting like a child, but I don't know how to deal with this situation. They are not friends, I don't want to maintain any relationship with them, I just don't want to feel shitty everytime I see them around. So...AITA? What's a better way of handling this?