Yep. Ex's are notorious for showing up when we get sober and they think we got money in our pockets again.
I remember at 90 days I was really struggling. I'd look up and see a billboard w/ a chick and a drink and it would drive me insane!

Well -- I mean MORE insane!
I finally had to get a bumper sticker and put it on the back of my car, hoping that if I got too close to a liquor store some sober cop might show up and bust me before I could drink. We had a few sober cops where I got sober. And, even many of the one's that weren't sober -- recognized our bumper stickers and check on us sometimes. I'm grateful that they did! It was a lot better than having them shoot at me.
Then, I got one of those "First Things First" stickers and put it on the dash of my car -- to remind me that I was a drunk, because I seemed to stay thirsty all the time! Finally, I plastered my whole dash w/ stickers of the Serenity Prayer, Easy Does It, Take it easy. 3rd Step prayer, the AA logo and all kinds of stuff -- to try and help me make it between meetings without drinking. Yep. I'll never forget those days!
Hey. Sorry to hear about your dad. One good thing you can say is -- at least he's seeing you sober while he's still alive. I wish my pops could have seen me sober before he died. At least my mom got to see me sober before she died. And, my long-distance kids know I'm sober.