Yes! It will be knee slappin hilarious when the car loses control and runs you over! Make sure you get it on tape. It'll be even more funny when its an off duty cop and he gives you a full body cavity search!
Just kidding! I 'm the first one laughing at people doing stupid shit like that. When I was a teenager, we put a bunch of snow balls on the street (like big ones for a snowman).. a guy tried to drive around them and slid off the street into a creek. He didnt get hurt or anything but I know it fucked the front of his car up. Its bad Karma Im sure Ive paid for... I hope.
I actually thought the dude in the truck was going to get out and beat their asses. Now that would have been great!