I've had this happen multiple times. I've gotten tickets and not gotten tickets. I've almost gotten tickets for going on the side of the freeway multiple times. Years ago I got a card from the Ulcerative Colitis foundation that says I have a medical condition that requires a restroom and every place i stop at to use the restroom, let's me use theres. But the times I've had a cop pull behind me while I'm going on the side of the road, the most common response is a laugh. I've also s%$t my pants while the cop was going to give me a ticket and they let me go. I think the issue is anyone could use it as a excuse. The cop doesn't know if it's true or not. Cops are lied to everyday. It's all how you handle it and address it. I've had people driving me and they get pulled over because they dont want want me to have a accident in there car and there freaking out at the cop while I've jumped out and gone right there. The cop gave my "friend" a ticket for speeding and then told him he was giving him a ticket for being a a$%hole. This ways YEARS ago and many things have changed.
I guess my only point is we have all been there and it happens.