Actually, your van, sir, was not creepy. Until you went and put this message on the back. I caught this at a stoplight in Lakewood, CO.
And, I have a bit of a problem with the sentence anyway. The word 'just' is an unnecessary modifier. Better to say, "It's not creepy, it's European."
Finally, no van can be a 'creeper van' unless it is a windowless panel van. Geez.