Yes, I do the same thing. I walk a path at our Rec Center. And 2 rosaries is 35 - 40 min. I see others with ear phones and I find myself saying oh, I need to get my 2 rosaries in, and over see the exercise. Then I have a rosary with my husband before he goes to work, but the days he is off, we say rosary in the morning, it is a much better start of the day.
Once in awhile I may have some say something nice as they pass by me on the walking path. I do get negative. One told me I worshiped the devil, another just stood in the path not moving and after 3 rounds of that, I report to staff. I think after 3 years I would guess and say I had 70% nice to me.
I could barely get a decade rosary said in 1990, by 1992 a rosary a day. And then it just didn't seem like it was enough, like I just got started. So, by 2006 I was saying 3 rosaries (15 decades). I felt my day was complete, if I heard or saw woes of the world, I was satisfied that I did my part between My Lady and I.
We do say rosary while driving. I find it harder to concentrate on both, but I find it better than radio and such.