https://www.leg.mt.gov/bi...-0010.html

"The driver of a motor vehicle shall when reasonably necessary to insure safe operation give audible warning with the horn but may not otherwise use the horn when upon a highway" That means you are breaking the law if you use your horn to say "hi" to someone. Most motor vehicle laws, when describing the roads that the law affects use the phrase "roads of this state open to the public". This law says "a highway", so I assume that means a Montana driver cannot use the horn to say "hi" when driving on a highway in Florida. And since this law applies only to highways, you can toot your horn and say "hi" on the streets.

In the sirens section, sirens can only be used in emergencies and pursuits and they cannot be used in parades or welcoming the Custer County Cowboys home from winning the state championship.

This sort of confusion happens when the legislature tries to run 1500 bills thru the legislature in a few months.

Growing up in MC in the early 60s... dragging Main and honking at friends was a number one pastime. If you got a carload of girls to honk back it was a big thing. I do admit it was pretty loud. A few years later when out of the service and back in MC driving on Main Street it was silent. Found out a city ordinance had been passed against the friendly honking and the cops had been picking kids UP. Fun times!

[Edited by Tom Masa (12/24/2021 1:08:25 PM)]