I was pulled over for going down one way , cop suspected me of drinking and provided a Breathalyzer test . I asked for a field test but was told this was faster . He came back to let me know I had failed yet didn't tell me the percentage . He had to take a call and gave me the Breathalyzer tube and told me to walk home . He kept my license , registration and insurance card . I don't know if I got a DUI or should contact the police officer to see if he just forgot to give them back .