> they’ll just call the police and knock your door down

Not in this case they won't. They are absolutely not allowed to use force, even (legally) reasonable force, to enter. As such, if the defendant isn't home, they can't enter at all.

Also, the defendant is legally allowed to refuse entry. Or more precisely, they may only enter if the defendant permits entry. However, if the defendant does not permit entry, they may be in contempt of court.

And yes, I know the last bit is perverse. Apparently that's deliberate (at least it was in the English law from which the Canadian law was derived).