What to do?

During the summer I love to run, walk and bike outside. Recently I have been walking a lot because I don't have my bike up and running yet, and also because I have a lot of time since I am mostly home alone all day. I walk to to the library a lot and to the grocery store, and at least one random walk a day. Well yesterday I was walking to the library when this strange man on the street told me that I shouldn't be walking alone in the neighborhood because it's a tough neighbor and kids have been known to jump people. Ever since then I don't want to walk alone on the street. If somebody I didn't even know told me to not do it, I should listen. But now, I have no way of exercising. I drive everywhere, and I feel like a lazy bum. It is so nice outside that I want to go outside, but it is no secret that we don't live in the best area, so I am stuck. What should I do to keep moving?