Any other HHR users have people hit them while parked?

In the past year...I have had 3 people hit my 2008 Chevy HHR while I have been in the store. All 3..ran off. Only 1 has been caught so far because a good Samaritan wrote down the person's license number for us while the guy sped off. Second time happened 2 weeks ago while I had my cat in the Vet (no witnesses) and the other just last night..sadly security cameras couldn't catch it. Are HHR's that hard to see..or am I having bad luck?