Some people have. Here are some of the worst. Photos supplied by @ParkingInSheff.
1. 17. sharrowvale road farmers market.JPG
Farmers market, Sharrow Vale Road.
2. 2. burngreave.JPG
Car left in the middle of Burngreave Road.
3. 19. roach road.JPG
Parking on Roach Road.
4. 10. bruce road.JPG
Double yellow parking on Bruce Road