Is the snow gonna ruin my car?

there has been snow storm after storm and i left my car parked .. didnt go anywhere for a day and went to leave there was snow covering the top and bottom of my car. im worried that having all that snow get underneath my hood is ruining the parts like the engine and transmission. plus im worried the traction control is outta wack because the car would not budge in the snow or is it just the tires. my dad said the tires had some wear on them when i bought the car. its under warranty , should i go get it checked out or just buy new tires. also the middle part where rims are at are rusted , should i get those replaced as well. btw this isnt a junk car , i only had it for 3 mos