Lawyer doesn't stop a traffic citation at the scene, I wont even talk to them and will just hang up the phone on them and give it back to the driver. Arizona VS Miranda only made it so Law Enforcement can't continue asking you questions about a crime when you request an attorney. This does not mean you can disobey a lawful order etc. So the whole ballgame does not stop, not by a longshot. Don't break the law and be an a**hole when stopped and you don't have any problems, I've been stopped and ticketed for speeding myself, didn't get beat up, pepper sprayed or tazerd. Guess my parents taught me right from the beginning.
Miranda who was so famous for having our right to an attorney pointed out to us was incidentally killed in a bar fight, stabbed I think. Anyhow his killer was advised of his miranda rights and refused to speak to the police. Kharma I say.
It would be interesting to see this "Grandma's" arrest record. You don't just wake up one day and act like that, my guess is she has been a problem all her life and now is just a problem hiding behind her age, sad all around. I'm glad noone got hurt or killed.