[villagetinker]

OP, I was thinking about this some more, so here is my suggestion. The next time your window misoperates, go through the gate, and a block away or so, try your window again, then turn around and go out and try to come back and see if window misoperates. In order to diagnose the problem, you will need to be able to reproduce it. If you can reproduce the problem at a specific gate, then I would try some other gates, keep notes on results. One of our fellow villagers may have a RF analyzer to see if the suspect gates are transmitting any radio interference. Also, if you can reproduce the problem, you maybe able to have the auto mechanic actually ride along an see the problem.
Finally, if you cannot reproduce the problem, you may have to wait for complete failure to have this fixed.
Intermittent problem are very hard to find and fix, I spent a lot of my career doing this.
Hope this helps.