Does "respect your elders" have a limit too?

Growing up that's what my parents ingrained within me. However, I believe every rule has exceptions too. If that elderly person is totally disrespectful towards you and others for no reason (they started it) and has gone too far then you can call them out on their BS.

What do you think? Isn't there a limit to that too?

Updates
+1 y
I recalled getting treated like garbage by a woman in her 70's. Even others were on my side and said she went too far.
This was my reply towards her:
"With all due respect, you need to just zip it already. Get a life."
Does "respect your elders" have a limit too?
Post Opinion