Definitely you have to exercise caution and common sense. When we are out and about we use drivers known to us and recommended, I keep their numbers in my phone and won't take random drivers.
I did meet a couple from Winnipeg this Feb trip, who had been robbed on the beach road - just around Montana's café at 9:00 PM at night. They were walking back to their hotel after dinner and walked around a car parked on the side with two guys who had the trunk and door open. Her husband was thrown to the ground and she was accosted for her purse. She saw a gun and gave it up. They are yearly visitors and were sadden by their experience. In my opinion they were handling it a lot better than I would have and hope that I never have to.