I visited my friend at boardwalk last week and had no problem. She stopped by the front desk the night before to tell them I was coming. When I pulled up to the parking booth around 8:30 am I told the woman working that I was there to visit “Jane” in room xxxx. She asked for my ID and waved me through.
There was ample parking at Boardwalk both in the morning and when we left around 4:00 that afternoon. I was fully prepared for the guard to turn me away or give me some sort of timed pass since it is flower and garden and they definitely had signs out saying that parking was restricted to resort guests and those with ADRs, but she just waved me in and said have a great day. Maybe it helped that my friend stopped by the desk the day before. I would do that just to cover your bases.