Keeps on rolling after park

So I just got my car back from the body shop right after the accident; and it seems alright. When I went to park the car in the garage i noticed that after i put it into park and release the brake pedal it keeps rolling, i hear 3-4 clicks from the trans and then the click where it stops. Same happened when i went to the gas station. It didn't seem to happen when I got back home. Any idea why?

Its the original c4 auto trans. 103k miles on it, from my knowledge hasn't been rebuilt.
 
  • Sponsors (?)