Unfortunately, I have no family where I'm at. Being prior military I settled after I got out of the Army.
You are brave to take those many kids to a restaurant alone! I'm starting to do more things alone with all the kids that we used to do together. It gets crazy, but I'm seeing it can be done. I thank God for my 8 yr old because she can take the 3 yr olds to the bathroom if needed. And she's enough mature to know stay where you at if I step away for a minute.
Can you afford a "mothers helper" type nanny? As in a middle school/high school student who wouldn't be capable of caring for the kids alone but would be an invaluable help for you? I know some of S13 friends (the girls) always want to play/help me at school and sports events. A few have asked if I ever needed help at home they were learning to babysit and they charged $4 an hour.
As far as wife coming home late. I agree with Starsky that you should lock the door, go to bed and tell her if your not going to be on time don't come at all.
Me: 35 husband:39 Sons 16 and 11 from my first marriage Twins 5 (boy/girl) Daughter 3 Affair bomb 2/27/14 He moved in with ow 3/13/14 OW kicked him out 6/15/14 4/2016 he seeks help for sexual addiction