Dealer can turn them off as i am sure the manual states.

 

just a reference... click here.

 

Yes, use the seatbelt. That turns the chime off.

 

If you want to be a rebel you could put it on behind you and you wouldn't even know its there. I do recommend highly to use it though. Just because you only go 3 miles at 25 miles per hour doesn't mean there isnt someone else going 80mph. They say 90% of wrecks happen within a mile of your house. Be careful, it's not always yourself you have to worry about. They are called accidents for a reason.