While the lack of a Miranda advisement MAY present a problem for the prosecution's case, it is rarely such a major problem that it results in a complete dismissal of the charges.
Your best bet is to contact a criminal defense attorney in El Paso County to discuss the specific facts of your case. If you are contacted again by law enforcement, DO NOT say anything to them and insist on a lawyer being present.
Best of luck to you.
No answer here should be considered to form an attorney-client relationship. You should consult with a licensed attorney in your jurisdiction so that a full evaluation of the facts of your case can be conducted.
As Mr. Bryans states. you only have to be read your Miranda rights unless you are being interrogated in a custodial situation. In such a situation, if they do not advise you of your rights, then any confession would be thrown out.
The information provided in this answer does not create an attorney-client relationship. If you are interested in his legal services, feel free to call Chris at (303) 409-7635 at his law office in the Denver Tech Center. All initial consultations are free of charge.