In my ceebeedweebee days I rolled with a 250w kicker behind a 148gtl on a 79 Monte, the ant was a Francis "Wheeler Dealer", a 109 inch fibreglas affair that was actually three quarter waves in series linearly loaded, awesome low angle of radiation. It was strapped to the rear bumper. Anyway the whip made the car look like a radio controlled toy, only much larger. I remember stopping at a light once and looking at the car behind me in the rear view, there was a young couple in the car and as they watched my antenna sway from side to side they swayed their heads in unison, making me smile. This setup easily set off business alarm systems from the road.
Apparently I ruined someone's car stereo by keying up the mic to work some dx on the way to a friends place for dinner, he was ahead of me leading the way and when we got to his place he jumped out and ran over to me all excited and said hey did you see those guys that were trying to run you off the road? I was like ummm no, who where they and what was their deal? He said all he knows is looking in his rear view there were two guys in a car next to me and he saw me key up the mic on the cb and smoke started to come out the windows of the car next to me. They were held back by traffic but tried to get up to me several times and were very aggressive about it but traffic kept thwarting whatever it was they were gonna do to me. I never even knew.
Wich reminds me of a story read in a HAM mag. There was a well known cb enthusiast who would park his car atop a hill next to said HAMs house. His cb was very wide, splattering into 10m and beyond but he chatted away for hours at times. The HAM came out and kindly asked him to remove thence as he was causing 10m interference and the cber said to go stuff himself. HAM said please consider another environ to tx from and the cber ignored HAMs pleas.
Well, next time cber showed up HAM waited till cber got settled in and started broadcasting and HAM got his point across. I left out the part where HAM had a 5 element or longer 10m beam, and a US mil surplus hf amp that would do over 5kw easily. He never ran it at 5kw in the ham bands but knew it was good to go in any hf band, so he aligned his 10m beam on target, fed his exciter to bespoke amplifier on the same channel the cber was operating on, and during a pause in bespoke cbers broadcast he keyed the exciter and sent over 5kw into bespoke 10m beam and counted to ten.
When he walked across the room and looked out the window bespoke cber was exiting his vehicle while a cloud of black smoke rolled out of the open door and windows, shortly after driving away to who knows where. The cber never came back.
