Well, thanks for your concern.
2 seconds sound clip from the Garfield on the Town movie soundboard.
You can hear this line at 00:06:13.742 in the Blu-ray version of the movie.
Quote context
[...]
- May I speak with Dr. Wilson, please? Yes, I'll hold.
- Hi, Doc, this is Jon Arbuckle. You know, Garfield's owner.
- Well, I was taking him to see you when he suddenly disappeared, and I'm not even sure how.
- It was near the pet hospital there, and I thought somebody might have brought him in, and well...
- I was afraid he could have been, you know, hit by a car or something.
- Well, in that case, you don't want a pet hospital. You want a tow truck.
- Well, thanks for your concern.
- Boy, it's starting to get dark. No sweat, I can take care of myself.
- In fact, it might be fun to rumble for some exercise.
- Just let someone try something. I'll give them the old... Hyia!
- Shadow. I knew it was you all along. Don't ever do that again, okay?
- Okay. You hungry? Me, too. Let's find a place to eat.
[...]