EXTREMELY COMMON. Cops and the state in general, tend to target people who assert their rights far more than people who just submit. After all, their whole schtick deals with power, control, and authority. Anyone who challenges that, is a threat. People who "just comply" are exactly what they want.
This applies to EVERYTHING. Not just guns. But literally anything you do or don't do, say or don't say. ANYTHING. All that's required, is somebody from the state doesn't like either it or you.
I've seen it a thousand times. Person does nothing wrong and has their rights violated. The person seeks redress, so the state doubles down. Where maybe the state just violated their rights by falsely arresting them and then letting them go, now all of a sudden you get a criminal summons for say...resisting arrest. All because you spoke out against the false arrest. They get to both punish you and it works as a defense against their false arrest. Again, it literally happens every single day.
I completely understand why people choose not to pursue legal action against the state even when the state has obviously and clearly committed crimes against them. We can only fight them as much as our wallets can afford, and ultimately, the only people who are punished are the taxpayers who pay the settlements or lawsuit damages. The state has unlimited resources and are retributive.