And, it's not just Walmart. Go to a parts house and try to get the part you need. I driving through Batesville, MS and saw a sign in front of one of the chain stores
advertising Sea Foam for $7.95 a can. I went in and bought 12 cans. It rang $11.95 each. I told the clerk that it was on sale. Said he'd have to get the manager.
Manager comes and tells me it is not on sale. I told him about the sign out front. We walked out to the sign and he ask me who put that price up there. (?)
At the end of the ordeal they let me have it for 7.95. I'm thinking if the manager doesn't know what's going on, the employees surely don't.