Thanks for all the input. Too bad you've already been through this, zopperman. They're saying they'll fix it no charge, but I'm doubting the wisdom of sending it back to the mechanic who didn't know how to assemble it in the first place. I'm going to see if they're willing to reimburse a local...
Just got my 4th gen used from a dealer. They did some work after I test drove it so it would be "safe for the road". They replaced the front shocks resulting in the situation in the photo. This is the driver's side. The rubber cushion and top washer slide freely between the top bolt of the shock...