Employer Doesn't Want Us Clocking In Until We Reach The First House Call.

Recently I've started a new job at an appliance repair company that does house calls. I'm still training, and I'll get put with another technician who has a van. I'm required to be at the office at 7:30 to be picked up (sometimes the person I'm riding with is late though and we won't leave until 8 or 8:30) and my bosses are telling me that I'm not allowed to actually clock in until we reach the first customer's house, which can sometimes be over an hour away. We're also required to clock out as soon as the last job of the day is done, though we still need to drive back to the office so I can get my car.

Is this legal? It feels sketchy at best, especially when at times the person I'm riding with will make me drive. Is there anything I can do about this? I live in Florida and the company is based in Florida.