They notice it, not make fun of it.
Tell you a quick story.
Back in the day when Ebay was one of the hottest things going, my buddy bought a boat from the site.
Only thing was, it was in Key Largo, Florida. He had to go down to get it.
Long story short, he calls and asks me to take a ride with him to pick up this boat.
Sure, no problem. We get down to Key Largo and pick up this fukkin boat and in our way back we cross over from Florida into Georgia.
At this point, I'm fukkin starving. I say bro, take the next exit you see and find us a place to eat.
So he gets off the next exit he sees and promptly gets fukkin lost in God knows where Georgia.
Amazingly, we run into a good place, I don't want to call it a diner but maybe it was but not like the ones we have here.
So we go in and sit down and we're talking and the waitress is staring at us while we talk.
So she comes walking over and looks me in the face and says where y'all from in a thick southern accent. White girl, too.
I look at her and say ma'am, I'm from the south.
She gets this incredulous look on her face and says No you're not! What part of the south are y'all from?
I say ma'am, we're from the southern part of Philadelphia.
She busts out laughing.
So, to answer your question, yes folks do notice my accent.