Unescorted not offended (as an ASD parent) but it’s hard to say really as people with ASD are all different! What makes you think he’s autistic - does he think he is?
One thing that is a common feature is having difficulty reading social cues and understanding what the ‘correct’ response is. Tbh in my own dealings with ASD adults (and I know a few) I just try to be quite direct - not rude or abrupt at all, but I try not to rely on nuance as I normally (unconsciously) would. Just not to leave too much room for misinterpretation about what’s expected. And not be too sensitive myself! I think there are adults on this thread who can probably offer a better perspective though. And thank you for wanting to support this chap - I hope that people will try to understand and help my DS in employment one day 
On a shallow note, I deferred the shoe decision by bringing both pairs with me. I think flats is probably the way forward though, sigh. The heels aren’t super high but I am a bit out of practice too, since being off work. If it’s raining I won’t be wearing either as they are suede and too nice to spoil. If I am feeling reckless I’ll keep both - very extravagant but PILs gave me a very generous cheque for my birthday which would more than cover it as I got both pairs on sale. I think shoes that make me feel lovely for funerals is a good use of treat money! DH needs to take me out somewhere naice to get more wear out of them.
Em I probably wouldn’t go to the restaurant. To spend that kind of money and savour the experience I’d want my mind at ease and no ulcers! But if you could bear it in your situation I’d go out with DH somewhere more casual and let MIL babysit for a short evening and not drink so she can kindly be driven home 
. So disruptive for her to pack up her stuff etc.
Glad the parcel arrived Meadow, and that your alias hasn’t confused your building’s post person . And very glad you're not worried any more about immediate rent problems.
I still miss @NeedAStrongOne too. Really hope she and her DH are okay.
Snuggly I don’t think you should feel guilty about not doing lots of whizzy things over half term. I hardly went anywhere as a child as dparents had no money and it also wasn’t such a normal expectation. And they also had the exact same logistical challenges as you! Days out were few and far between and I remember them still but also the ‘messing around’ time at home. I had a lovely childhood and got so much out of having siblings, and still do...
Had the best fish and chips ever tonight, about £7, and am now in bed in my hotel watching Netflix. It’s going to be an emotionally draining day tomorrow.