Exactly. The elders make the rules for each local group. "My" Amish do not drive. They have a communal van that is driven by a non-Amish employee.
The young (21) Amish guy who hunts my land has a $600 game call (he is heavily into varmint calling). He came to my house and had me download from the internet, the program that programs his game call with the free library of calls from the manufacturer. I am convinced that he nor anyone else consulted the elders about that device...I am sure that he just did not tell them and as long as they do not forbid its use (or amend the Ordnung), he will continue to use it. In short, what they do not know about, they cannot prohibit.