found on Tire Rack
"When tires are replaced in pairs in situations like these, the new tires should always be installed on the rear axle and the partially worn tires moved to the front. New tires on the rear axle help the driver more easily maintain control on wet roads since deeper treaded tires are better at resisting hydroplaning."
This was also the policy at Sears and even watched videos of cars on a track both wet and dry with new tires on front then rear. But as stated, it's ur car and when you leave the shop you can swap them back, put on a surgical mask, and go to Walmart.
