Renting a car in the United States, starting from Miami, how is the security there ?

Choosing a car rental is the golden rule, fast and simple. Renting and returning a car at the airport saves money and is convenient. If you choose to return the car to a different location, you must specify which counter and ask for detailed information about the parking and key return locations. Sometimes, on weekends, the city counters may be unattended, and you may have to leave the key in a box and park the car in a designated parking lot. Also, when returning a car at the parking garage of Miami Airport, be sure to carefully look for the company's signage. Once you miss it, you won't be able to enter the garage and will end up on the highway, causing you to go around. Another major trouble with renting a car is parking. Having a meter is great, but you need to have change. If there's no meter, you must pay attention to whether parking is allowed. In Miami, we mistakenly parked in a private parking lot and got a $280 fine from a towing company in less than 5 minutes. After negotiating, we paid $140. It feels very inconvenient to find a legal parking spot in many big cities. Sometimes, you can't find a paid parking space after searching several blocks. Temporary parking will result in towing or fines within minutes. It's very frustrating. This is the biggest problem with driving in big cities. Once you're out of the city, it's not an issue. You can park anywhere, and it's not as strictly regulated as in the city.