No, a Motor Patrol grading the shoulder will hide them or if you live in town, a street sweeper will kick them down the road. I've see them for 40+ years & NEVER have I seen anyone picking them up less some fishermen for lead weights. So they are still there. One can pick up enough coinage for a snack & enough wheel weights for sinkers @ an intersection. If you haven't seen them, you just aren't looking. Maybe it is because you can't run or bike on controlled access thoroughfares?

Cheers,

Raimey
rse