Generally speaking, I agree, but something is really strange about this.
Supposedly Meth stays in your system for ~4 days, he claims he has had tests every couple days since this started and all have been clean. He also said he had tests just before and just after the NASCAR test that he failed, and both were clean.
There are also allegations that NASCAR falsified tests in the past:
http://www.nytimes.com/1990/02/22/sports/nfl-adviser-accused.html?scp=4&sq=tim%20richmond&st=cse
Yeah, it was 20 years ago, but essentially the same jokers are in charge down in Daytona.