This is one reason I have a ham radio license and a couple of radios. You can't stop those. If they decide to shut down to interfere with local repeater station

This is one reason I have a ham radio license and a couple of radios. You can't stop those. If they decide to shut down to interfere with local repeater stations, go peer to peer. If they interfere with a frequency range, just change to another one or another band entirely. If you don't want open voice being transmitted, switch to a digital mode. It's mainly useful as a hobby or for emergency communications but there are other perks.