As a result , he took oxygen while on top of his vehicle 's hood and was n't lucid enough to give a post-race interview .
Waltrip was overcome by the excessive heat shortly after the race .
Waltrip took oxygen while on top of Waltrip 's vehicle 's hood and was n't lucid enough to give a post-race interview .
Waltrip was overcome by the excessive heat shortly after the race .