Ya, I drive a truck. We're always whipping out our cocks to piss in public, since we have no choice. It's always nasty piss too... Either the remnants from last nights booze, or a steady flow of coffee piss.
It's just the way of the road. We're simply used to whipping out our cocks under any circumstances.
One time in Salinas parked for the night, I was having a few beers before bed, so had to whip out my cock and piss all over the road multiple times. Salinas PD rolled up while I had my cock in hand, pissing all over the road. They asked if I was the driver of this big rig. I said, "Yep!" They said, "Sorry for bothering you, Sir! Carry on!"
Those who rule the roads get to piss wherever they want! We are the Kings of our domain. We piss where many others wouldn't dare to piss. It's just the way of the road.