This is how you can fast travel to robots in your town
1st click on the trophy symbol to pull up the event menu
2nd click on the 3D printer menu
3rd click on the parts icon for the level meter on the top right
4th click "do it" on the menu that pops up, this will fast travel you to a robot
The fast travel takes you to the furthest robot from your screen position each time and works it's way to the middle of you town.
It takes me less then 5 minutes to clear all robots in the morning left from the night.
Hope this helps and feel free to add me as a friend in the game.