dcash

My 2005 Baja has 123K miles and I had the oil changed--at the dealership, no less--today. After this, I drove about 2.5 miles and noticed that the car was not running well. Whenever I stepped on the gas, it would start to stall and when backing off from the gas this smoothed off. I stopped the car and after 15 to 20 minutes drove the 2.5 miles back to the dealership. By the time I got there, it was running very rough when stepping on the gas and blue smoke was coming from the exhaust. Long story short, after ten minutes they told me that oil had mistakenly been added twice. The technician had apparently filled the car with oil. Their mechanic hadn't realized this, so he filled the car with oil as well. At this point, I'm unsure as to whether they simply drained the excess or did another oil change. Could the engine have been damaged with this amount of driving with the excess oil? Given the issues I've read about with foaming, should the Baja have an immediate oil change? Any suggestions would be appreciated. Good grief, this wasn't even one of the McOilchange places. It was at the dealership, for heaven's sake.