A little late for this now, but still good advice in the USA.

If stopped for any DUI/DWI offense NEVER blow, give blood or urine. Just sit there. You will loose your driving privileges for a short time - but a competent attorney can straighten the mess out to a reckless operation deal typically with ease. The police can't force you to take any test for a minor traffic stop. You have rights as well - The consequences of denial to take any test to "clear yourself" are ALWAYS much less than taking the test and giving them proof you were impaired.