All mentions of portkeys in HPMoR explicitly describe themselves needing to get out of the Hogwarts wards first. The “Santa Clause” letters, the emergency toe-ring portkey, when Quirrel and Harry leave together they walk out of the wards first before Quirrel throws a portkey to Harry, etc.
All mentions of portkeys in HPMoR explicitly describe themselves needing to get out of the Hogwarts wards first. The “Santa Clause” letters, the emergency toe-ring portkey, when Quirrel and Harry leave together they walk out of the wards first before Quirrel throws a portkey to Harry, etc.