Just my opinion, if you elect to leave— you’re done and gone. Clean out locker and restrict access to facilities.
They’re still a student. They still have access to regular student gyms, etc.
if you’re a grad transfer- that’s different. But I certainly don’t want a future opponent training in our team gyms, weight rooms, etc. Absolutely go use the student rec centers if you’re on campus still— that’s you’re right.