take it back they didn't align it right
A wheel alignment is what syncs your steering wheel with your wheels. It ensures your car will drive straight when your steering wheel isn't turned.
When you have the front end aligned the mechanic should align the steering wheel also. This is so the steering wheel is positioned straight when you're driving straight down the road.
Steering wheel shakes
There should be an alignment mark on the steering shaft and the steering wheel.
Get an alignment.
When your steering wheel is out of wack with your driving
The alignment angle called caster helps with steering wheel return.
A car's steering wheel will vibrate when driving if the car's alignment needs to be adjusted.
get a wheel alignment
The most effective and accurate way is to take it to a local reputable auto repair facility that has an alignment rack. Have them do a complete alignment. Your steering wheel should be straight after.
could be bad alignment
I'm not surprised. Go to the alignment shop and get a wheel alignment. It will cost about $80 US. Unless you damaged some of the steering components. It's your ONLY option.