Doesn't sound crazy to me. Quite the opposite.
They're a little outside your time period, but has your research delved into the activities of the Loyalty Rangers created by the Hobby Loyalty Act? (35th Legislature: 1917)
Some still confuse the Loyalty Rangers with the Texas Rangers.
I've done a little reading on them--mainly through research in the transcripts of the hearings on the Rangers that the legislature carried out in 1920 about the events from 1915 forward. The hearings had several witnesses about their work in the Valley and elsewhere in trying to enforce the draft laws and prevent dodging service.
There's also a good book out on a German_American citizen from Seguin (if you Know Texas, you know we have a large German immigrant pop.) who was caught in the toils of the loyalty Rangers during the war. Can't think of the name off-hand.