I had my tires rotated and RX 350 inspected for an alignment. My car was slightly pulling on highway after. Should I have them change it back to how it was. Is this normal and will it even out eventually?

 

If the tires were worn unevenly, this is a natural result and will eventually even out. However, I would also make sure that the tires on each side of each axle are at the exact same pressure as well. Otherwise, you may have a slightly larger tire diameter on one side if the pressures aren't equal, and this would also create a "pulling" scenario.

NOW... if the tires were worn unevenly, you have to dig deeper to find out why. Tire pressure too high or too low on one side? Tire imbalance issue? Tire/wheel alignment issue? Worn suspension components (ball joint, control arm, tie-rod, shock/strut, etc.)? Etc.?