RIP Grumpy Cat
So what would be the point of offending Grumpy Cat? If the first thought that came to mind was to use a Grumpy Cat reference to warn this reckless driver, then this person must have ten cats and talk to them on a daily basis. Or perhaps they actually despise cats?
In order to let the owner know that their parking skills aren’t appreciated at all, this person drew a really nice picture of Grumpy Cat and warned them that if it happened again, Grumpy Cat would send a tow truck to the location. Consider the possibility that the cat is driving the truck itself!