Other than a few local businesses, seldom heard, I almost never hear the frequencies used for voice communications by private individuals. There are a number of old Part 90 radios that predate the creation of MURS so they could be used, grandfathered in, and a number of new radios that are reasonably priced and Part 95 certified for it. So the question is just how many people really use it other than businesses or for a wireless intercom/data applications?
I have seen "146.52" oval stickers on automobiles on I-5 while driving between California and Washington a few years back. The auto's with the sticker have been heard replying to other stations who called them. Is this the new way to let others know about inter-vehicle communications? You decide.
Generally it sounds like a citizen's band call out almost, "Hey chartreuse micro-bus with the one forty six dot five two oh sticker, this is your_callsign_here, how copy" or "Hey vehicle behind