Hey what's up man. I guess I can kinda relate, I am stationed in Del Rio right now, and I Just spent a week in Rockport where I have been fishing since I was a little kid. Thankfully, I have never had a 3 year hiatus from there, but it has changed and grown up so much in recent years!
I fished a lot last week and I had no luck in getting into the fish. It looks like a few people here found em, but nothing great. Everyone I talked to down there seemed to do poorly as well. I think the weather has them all stirred up and turned off. Hopefully the weather has been getting better for ya.
In terms of where to go or what to use, as always find the baitfish by looking for the nervous water, or the birds. Cooler deeper water might help. I hear people did ok around Mud Island. We found lots of bait on the NW side, but no bites. I can tell you that I did not have any luck with spoons, live shrimp, top waters, or Norton sand eels. So try something differn't than those!