My planned exit was similar to OTWO-
Gradually reduced field service to one hour a month for a while , then stopped altogether at the beginning of the new service year. I knew the service overseer was changing to a brother who was new to my congregation and didn't know me. Apart from 6 months of requesting my report, and receiving a polite "no, brother, nothing for you this month" he never asked questions.
Same with meeting attendance. Whittled it down to one or two Sundays a month, then took my opportunity to leave completely when there were some serious issues in the congregation.
Except for one or two attempted visits from elders early on, they have left me alone.
CM