I used to dispatch for Madison County SO in the early 1990s. I had an investigator that got out of the car on a foot pursuit one day. I knew all the radio comms he had would be an old HT220 laying on the seat next to him. I advised all units to 10-3 (stop transmitting) for unit 107 (the investigator). I had deputies going "2XX to 47(Madison Co SO dispatch), I'm 10-98 (completed call) 10-61 (see subj) miscellaneous (type report) 10-8 (in service) 10-77 (enroute) 10-55 (assist) 107 code (using blue lights/siren)". After a couple of these, I said "ALL UNITS STAY THE HE.....(almost completed the bad word and caught myself)....correction 10-3!"

Madison County uses a 10 code for as many words as they can...which sounds too over the top IMHO.
I turn my radio off when doing a building search to keep it from giving my position away. There can be too much noise on the radio while doing a search. Plus, we use vhf hi band, which is horrible inside a building anyway. It does work in smaller structures, but is horrible as far as metal commerical buildings, under bridges, over hills etc and our local small town frequency keys up at random and rings when we get a phone call for service on our regular number.