Legal Question

My friends and I are planning on making a video with us racing, fooling around, and whatnot, pretty much like other street racing videos you can download. But I'm wondering if we should blur out our license plates and faces? Cause if the wrong person saw it, couldn't the video be proof of what we'd be doing and be used against us? I mainly ask cause the video will be out on the net and I don't want it coming back to bite us in the ass.