About three days ago, I drove a gas cart as far north as just beyond Canary Cove, which is about a mile north of Mata Chica and Azul and near Costa Maya. The road/golf cart path was in by far the best condition I've ever seen it. Absolutely no problems anywhere, except a few bumpy and rocky spots near Mata Chica. Of course, it hadn't rained much then.
After the rain on Friday night, I drove back to town from Grand Caribe and that section was still in excellent condition. Don't know how the path was north of there.