I guess these Texas driver are not used to tunnels, this is too funny, just the same if you get into such a situation don't forget to employ a height-reducing technique of letting some air out to reduce the height. :D
http://www.nytimes.com/2007/06/01/nyregion/01truck.html? em&ex=1180929600&en=287a4f95e0ee4164&ei=5087%0A
