If you are referring to contacting an attorney regarding a repair issue in Colorado, you will need to speak with a Colorado lawyer.
Jurisdiction for court cases generally applies where the events took place or where the business operates. Since the repair occurred in Colorado and the shop is located there, Colorado courts will have jurisdiction over any legal dispute. Even though the consumer lives in Wyoming, the fact that the breakdown and repair happened in Colorado makes it the appropriate legal venue.
Feel free to contact us if you would like to speak with an attorney. Here is an article we wrote on bad mechanics you may find interesting.