Your following post in the other thread seems to imply that you already have the gold card, no?
Does this mean that you successfully applied for the gold card abroad, entered Taiwan with the resident authorization thing, and picked up the physical card here? Are you sure you really entered with a 90-day visa?
In any case, if you receive the gold card here you shouldn’t need to leave the country (at least I didn’t earlier last year when switching from a visa exemption to the gold card). I won’t be the one coming to bail you out of prison though, so it wouldn’t hurt to check with NIA. 