Yes, an officer is *technically* on the hook until they actually resign their commission, or it gets removed for cause or HYT.

If you're retired, you still hold the commission for life and are subject to recall, typically for national emergency but they could do it for a court martial. That would most typically be for crimes committed while on AD, but technically they can get you for acts committed after retirement... this was recently re-affirmed by the supreme court. That's rare, but this might be one of those times.

I'm pretty sure it's possible to resign your commission and still get paid the retirement (grey areas reservists can do this for sure, with caveats). Probably worth checking that out if you're planning on annoying city hall.

That's for active duty, I honestly don't know for sure about reservists.