I haven't seen locally at any stores that usually carry Quest protein bars. I did ask for a sample of them from the Quest website but I don't know if they will send them out or not. They will for the bars. I have tried HealthWise Protein Chips online from Bariatric Choice website and they are good. I used to eat them alot but got kinda tired of them so I haven't purchased any lately.
If you try them, let me know what you think of them. I think there is a subject line under the Foods groups at MFP where people have posted on them. Just search on Quest Protein Chips and the link should pop up.

These seem interesting, but for me chips were a total trigger food and I would worry that even though these have more nutritional value, they still might trigger me!

I have some of the BBQ ones. I like the flavor but the texture is a little odd. At first bite they taste like baked chips but they have a sort of chewiness that normal chips don't have. I don't really like eating them as is but they are delicious as nachos with shredded chicken, cheese, and guac on them - I can eat about 3 nachos like that (so one individual serving bag lasts about 4-5 meals for me). I bought them as a case of 8 bags directly from Quest's website. It's been a month or so and I still have 5 or 6 bags left. I could see them potentially be a trigger but I don't like them well enough to plow through a bag of them regularly.