Once I'm advised of my rights, can I be questioned?
You can be questioned, without a lawyer present, only if you voluntarily give up your rights and if you understand what you are giving up. If you agree to the questioning, then change your mind, the questioning must stop as soon as you say so or as soon as you say that you want a lawyer. If the questioning continues after you request a lawyer and you continue to talk, your answers may still be used against you if you testify to something different. It is highly advisable that you request a lawyer and remain silent before you answer any questions.
However, if you are arrested for driving under the influence, you do not have a right to refuse a chemical test to measure the amount of alcohol and/or drugs in your system. If you refuse to take the test, your driver's license will be suspended and the refusal will be used against you in court.