"'Too drunk374'" joke

A police officer pulls over this guy who had been weaving in and out of the lanes. He goes up to the guy''s window and says "Sir, I need you to blow into this breathalyzer tube."

The man says, "Sorry officer I can''t do that. I am an asthmatic. If I do that I''ll have a really bad asthma attack."

"Okay, fine. I need you to come down to the station to give a blood sample."

"I can''t do that either, i am a hemophiliac. If I do that, I''ll bleed to death."

"Well, then we need a urine sample."

"I''m sorry officer I can''t do that either. I am also a diabetic. If I do that I''ll get really low blood sugar."

"Alright then I need you to come out here and walk this white line."

"I can''t do that, officer."

"Why not?"

"Because I''m too drunk to do that."