he didnt stay on the spoiler you can just make out the nike aires on his feet,he was running once you had set off and did indeed manage to keep up!he had heard they were slow but just wanted to find out for himself!!!!!
i had the same thing happen to me. pulled into steve hill motor sport to get them to check my car over just after i brought it, when i finished talking on my phone i got a shout from them to come inside the garage. then they showed me the snail on the inside of my spoiler, and they also took some photo's.
those snails must have some grip from there slime as i wasn't hanging around on my way up to see them. they did take the p**s out of me.