It's been a long time since I ran any tournaments but when I did I would put someone on the list if they called, but only if someone there would pay his entry right then. After that, I didn't care if he showed or not. If he was there when the tournament started, it was all good. If not, he forfeited his entry and couldn't play even if he showed up.
I also wouldn't allow anyone to enter if they showed up late, no excuses. It didn't matter if the tournament had started yet or not. All the guys who were chronically late complained for the first week or two, but after that it was amazing but they always made it there on time.
Having said all that, there isn't really any rules or regulations for a local tournament director. Usually they are doing it on their own time, usually for nothing in return. So, if you don't like how they are running the tournament, then just don't play in it.
Royce