Parking at the edge of the driveway and wading up the drive isn't following the walk path? We're talking about a normal residential street here, not the boonies. By the time I switched into the water shoes each shoe weighed over 10 pounds due to being water logged. It was becoming more unsafe than the water shoes, which by the way, do have great material on the bottom to keep you from slipping. The way I see it, if I'm not trying to avoid puddles or light flooding and dancing around them, I'm safer. These are paths I've taken dozens and dozens of times. I don't have to focus on where I should hop out of the PC to in order to make my delivery.. I can just make it like normal.
Until you get hurt and UPS says it is your fault for walking through water. Dude I don't even walk in puddles. Slow down, they are just packages. UPS isn't going to care about your extra effort when you get injured.