If that's all it takes to DOS your competitor, well, I don't think you have much to worry about from them. Even a busy motorway doesn't have that many cars pass

If that's all it takes to DOS your competitor, well, I don't think you have much to worry about from them. Even a busy motorway doesn't have that many cars passing over it per minute. Also you're going out on a highway, at night, to lay down a big sticker. That's dangerous, suspicious, and illegal (before we even considering what the sticker does). If you want to DOS a competitor there are much more effective and safe ways to do so.