I smoke in my car every evening after work, not sure if that counts "in public" been doing it for some time now!
Every while I'll take my sons, ages 2 & 3 on a walk in the wagon and I'll bring the pipe along, I get some stares, because I don't live in a neighborhood that you would think of smoking tobacco in a pipe (in my "hood" they smoke weed, and who know what else in their "pipes")