A/C and engine overheating problem. Please help!

Okay guys, so I drive a 2008 Infiniti g37s, lately whenever I turn on the A/C it blows ice cold whenever I am driving but once I come to a stop, it starts to blow warm. The weird thing is, after that happens my car start to overheat and jump all the way to top of my temperature gauge. Anyone have any ideas? via /r/cars http://ift.tt/2tEySdS