If you had worn tires rotated it would cause your steering wheel to vibrate. Take your car back to the shop that did the work and ask them to check it out for you.
〉 Answered on Nov 4th, 2006 by Amy Mattinat, Owner and Author at Auto Craftsmen Ltd
The tires may be worn unevenly - this happened to me and I found that the tire were worn unevenly and it was due to the design of the car. If you ,move the front tires to the rears it may help. If not consider replacing the tires if they are worn. Also have a technician check your wheel alignment as that may be the problem too.
〉 Answered on Oct 18th, 2006 by Jamey Wozniak, Owner and CEO at Joe's Hitch, Trailer & Truck Accessories