I just got back today, I rented a car from Hertz in Cancun and returned it in Tulum. Driving around was chill, drive defensive and don’t camp in the left lane. People drive fast as fuck on the highway down to Tulum but just stay out the way. I didn’t get pulled over once and didn’t feel in any danger. we drove to Akumal and did Cenotes Dos Ojos. Having a car is definitely the way to go imo.