@FitzE I believe so, yes. I have no skin in the game but I had heard that here or on other forums.
In Canada I understand an infamous “horse lover” was banned from Spruce Meadows .
The USEF does have written in their rules that a show management can refuse / ban entry to a person who has shown behavior against the management , property owner etc. It can be a challenge to find in the General Rules, but it is there.