I agree !! I was driving though a Costco parking lot about a month ago , they have what is called food courts out side with a bunch of tables , it was pretty packed that day (they are most days) I was driving by looking for parking , all of a sudden I heard my transmisson on my cb radio go over there PA system , IT WAS LOUD !! but at first I was kind of in diseray , I kept talking to the guy I was talking to and looking around to see where it was coming from ? I was kind of tripping on this at first , then I realized what was happening , OUHPS !! people were looking around and not even at me , this all happen very fast but it was like slow motion to me. It caught me off gaurd for sure.Ummm, not all fast food joints are FM or even VHF...
At one point they were very close to the 30Mhz frequencies...anyone remember when cordless phones were in the 49 Mhz range? I do, and it wasn't that long ago...
I have talked through the intercom at a local McDonalds, both the customer and the server heard me talking. And that was with nothing more than a barefoot Kraco Super Deluxe and a simple Radio Shack gutter-mounted antenna. I also came through my friend's cordless phone...
Just because one or two fast food joints have VHF and FM doesn't mean they all do...
Where I live , I don't think the local PD would have appreciated it. So the bottom line is this , shit can happen.