The truckload of penguins

A traffic cop is parked up by the side of the road, watching traffic pass. To his surprise, a flatbed truck crawls by, and the back is filled to the brim with penguins. Unsurprisingly, he wanders what the heck is going on, and immediately pulls out, tailing the truck.

He signals for the driver to pull over, and the truck pulls over onto the hard shoulder. The cop gets out and approaches the truck, keeping an eye on all of the penguins. Needless to say, he is mightily confused.

The policeman gets to the front of the truck and peers into the cab, to see a fairly innocuous middle-aged man at the wheel. The driver winds down the window and the cop asks "What on earth are you doing with all these penguins?"

The driver shrugs, not seeming too bothered.

The flustered officer pauses for a moment, and states "Alright, you need to take all these creatures to the zoo, right? Get 'em off the road, and take them to the zoo. That should sort things out."

The driver seems to enthusiastically approve, and smiles back, as if he thought that were a great idea. The officer, more than a little taken aback by the situation, notes down the truck's registration number and then gets back into his police car and drives off.

Time passes.

The next day, the road cop is back in the lay-by, watching the traffic, wandering what happened to the truckload of penguins. Suddenly, the very same truck appears again, travelling in the opposite direction. Once again, the penguins are all in the back, though this time - and he has to blink to check he's seeing it right - they've all got sunglasses on.

Confused (and a little bit concerned for his mental health), the officer pulls out and tails the truck. He signals for it to pull over and jumps out the car, preparing to give some stern words. He passes the penguins in sunglasses, gets to the cab at the front and, finding the same driver, confronts him. "What the hell do you think you're doing? Do you think this badge is just a joke? These penguins should *not* be on the road, and furthermore, you completely ignored what I said yesterday, which was to-"

The driver pipes up "Yeah, yeah, I took 'em to the zoo. But today, they wanna go to the beach!"