I'd say that this is next to impossible, if not impossible. Despite the fact that there are 3 bands of radar, and one of Lidar, to jam radar takes a LOT. Let's take the Ka band for example. Ka covers a range of mhz that it can transmit on. So, no two radar guns will shoot out the same radar frequency. This means that you have to figure out which frequency is being used, generate the correct reply reflection, and transmit it back on the right frequency. To make things worse, you have to do this in nanoseconds or less. You have to remember that radar and lidar guns work off of time differential and distortion to determine speed. IMHO, it's not worth the time to even investigate.