Glad to hear you're doing better now!
I don't know if you use Facebook, but I've seen groups where you can give a shout out when you're alone and struggling with a hypo. There's always someone willing to stick with you online through messenger. You exchange addresses, so if the other doesn't hear from you in 15 minutes they'll send out an ambulance.
I've never used this, but I'm happy for this possibility if I ever feel unsafe again with a stubborn hypo. The last time this happened to me (after mixing up my long and short acting) I woke up a neighbour and had him sit with me until things were stable again. This obviously only works when you have very nice neighbours, and it's not something I'd want to do regularly. I think those Facebook groups are great, although it's of course a bit of a risk with the address. Still, it may be useful for you should this happen again.