I agree, don't go near Jiffy Lube. Why not change the oil yourself? Go to Auto Zone and get 0W-40 Mobil 1 or almost any discount store and get 15W-50 Mobil 1. Don't fool with any of that 30 weight stuff. It wouldn't even be around if it wasn't for US and Japanese car companies pushing it to help them with their CAFE averages.
Make sure that whoever does the oil change uses the OEM filter kit and knows what they are doing.
Can't you simply wait on the oil change until you can get to someone that can do the job right?