The sounds and lights you had are symptoms of severe overheating. Might want to check and fill the oil and anti-freeze as needed and don't drive the car past the "L" on the temp guage. (Stop and let it cool down.) Sounds like a water pump as mentioned, but ignoring this and driving an overheated engine, especially with low oil, is damaging. A reasonable mechanic should be able to replace it for under $150. Contours have some common problems, and the WP is one of them.
I'm not sure where you take your car for an oil change, but make sure they are putting in the full 5.8 Qts. (Most cars are like 4 Qts.)