Small Transport
Flight Crew Commercial; Flight Crew Instrument; Flight Crew Multiengine
Flight Crew Last 90 Days 100; Flight Crew Total 2100; Flight Crew Type 500
Communication Breakdown; Situational Awareness; Workload
Aircraft Equipment Problem Less Severe; Conflict Ground Conflict; Critical; Deviation / Discrepancy - Procedural Published Material / Policy; Inflight Event / Encounter Weather / Turbulence
Flight Crew Overcame Equipment Problem; Flight Crew Took Evasive Action
Airport; Human Factors; Weather; Aircraft
I was on a instrument approach to CID talking with Chicago Center and picking up ice. Chicago asked me to cancel IFR clearance as early as possible because a (Company) plane was landing behind me. I changed to the CTAF frequency and made a 10 miles out announcement. I broke out around 2;000 ft msl/1;200 ft. AGL and change back to Chicago Center and cancelled my IFR clearance with ATC. I switched the comm back to CTAF and continued the approach; however; the button push failed to change to CTAF and stayed on Chicago Center and I missed that. During the approach I was stunned to see a vehicle pull out onto the approach end of the runway and stop at the very end just beyond the runway end lighting. I was still approximately 1-1 1/2 miles out. I had to make a decision to land or go back up into the icing. As the runway was 8;000 ft. long I elected to extend and land in the 2nd half of the runway as opposed to risk picking up excessive ice and endangering my aircraft.
Pilot was flying instrument approach after having ice build up on aircraft. During landing a vehicle entered the  runway. Instead of going around; pilot chose to land long instead of returning to icing conditions.