Dynamic paint of final frame only

I want to create an image of tire tracks (to make the asphalt look more realistic), and was hoping to do so with dynamic paint. I have an animation of 100 moving vehicles, and I want to draw tracks where they have moved. However, I don’t really need the dynamic part of dynamic paint.

I’ve added a brush for each wheel of all my animated vehicles, and I can bake the dynamic paint. But I only need the last frame (the one showing all the movement of all the vehicles). Is there a way to specify that? If I select range 7200-7200, it will only record the movement in the last frame, and that is not what I want. I want all the movement from all frames, in one frame.

Is there a way of doing that? (except for baking all frames and deleting almost all)