Point, and a small one, no one is arrested for putting signs in English up. Those laws have been amended so far as I am aware. You're fine so long as French is the predominant
language on signage. Under the first
incarnation, Montreal had the only Chinatown in the world absent of Chinese writing (!) because it was French only. That said, the above is my very literal interpretation to an online source explaining bills 101 and 88. It's still something contended over, like the Irish pub that has been the centre of controversy for not offering menus or service en Francais
, but, IMO, that's a case of someone pushing back just a wee bit too far.
Montreal itself is a vastly multicultural city with a large and thriving Irish population, so English is not uncommon whatsoever. Further, many Anglos with very limited French have moved to Montreal to work as it's a very large centre for business and finance. Most will learn French in time as immersion is the best solution, IMO. Quebec City is a bit more of a stretch but this isn't the 70's and people have realized that bilingualism, when your first language is something other than English, is somewhat essential should you ever want to leave the confines of la Belle Province.
I have vacationed in Quebec numerous times and so far I have found the stereotype of Quebecois being rude and ignorant of Anglos to be patently false. Even my wife's very limited French was enough for her just so long as she showed the effort
. Heck, world over I can make the same claim about being exposed to other languages/cultures, which I have been on quite a few occasions.
Ergo, I don't consider it out of the realm of possibility for this woman to have gone to see her sister in Montreal. That said, it's a rather small point as things do not add up, as Concerned has pointed out already.
I suppose the reason I wouldn't want to see Montreal dismissed as a potential destination is because that limits options for investigative angles. FWIW. Sorry it took so long to get to that, but I wanted to explain myself clearly.