At the moment, it's nightmarish on a first playthrough to get to where the arrows point because you're not certain if there's a wall in the way or not. The exact location of what I'm going to call 'cravings' is too difficult to be worth going towards. So, the very moment I found out you can enter any building after a short cooldown...
Pizza Gut and Burger Buster are adjacent to one another and take less than 3 seconds to loop back and forth between. They're also very close to the garage, so drifting around into it and returning to the cycle can consistently keep your time high. As long as you don't make a mistake, you can go as high as you want.