"(1) If a person, without lawful authority or excuse, in any way wilfully obstructs the free passage along a highway he is guilty of an offence . . . "
"whether the activity was or was not reasonable."
"A public right of way on highways is established by use over the land of a proprietor."
"The books are rich in illustrations of this matter, for no actions have been more obstinately fought out than cases of right of way."