Actually in Colorado, you can have a pistol loaded in your Car at anytime. You can hide it in the glovebox or lay it on the dash. As for OC in colorado and most all western states, its legal and in most rural areas totally accepted. Denver has its own laws but other than that, knock youself out. I lived in colorado until last year and was told more than once by local LEO to definately OC my gun, they much appreciate it.
TITLE 18, U.S.C., SECTION 242 states that anyone who stops your civil right by way of any means including intimidation or any, or by use of their office, ie. police, they are subject to fine and imprisonment.
If you carry a copy of that law with you, as well as a copy of the 2nd amendment, and notify any LEO of the law and he proceeds to detain or arrest you. He will be guilty of violation of civil rights and you have criminal and civil charges at your disposal.