Sorry to hear your friend got sick with covid, believe he'll be well
Actually I dont know some drivers in Denver, but actually I think you can try to drive your car yourself, it can be a great winter trip. Or in case if it's not possible google some car shipping services cos all of them are brokers, they are working with all drivers by the national loadboard, you will pay extra $100-200 and they will find some carrier on your route. Just when you will choose who you should to call check reviews on several sites, cos they can buy good reviews. From my experience there are were several cases when broker were really nice and found a cheap driver for so in result my car was shipped even cheaper then I can expect, if my memory doesnt lie me it was
these guys, I shipped with them twice, and both time they found for me good drivers for a wonderful price.
Good luck and be well.