I have small feet for my height, and I'm betting the heel and toe thing would be a challenge for me, too.
I much prefer to blow in the box. Did it in the UK when the cop that stopped me decided I was the best target leaving the pub because I had the fruitiest sounding car. Not a a good choice, because I was stone cold sober and I reckon at least two others that left the same time as me were slam dunks for 0.08 and more.
Digressing, his face was a picture when he was doing the paperwork and realized that the car I was in had double the horsepower of his Austin Metro. "I bet that goes", he said. I looked him in the eye and said, "Yes, if I really feel I have to." He smirked.