Sketchy Voter Shenanigans in Gary?

Election Journal is reporting of a car wash in Gary that is giving away free car washes to those who provide a “voter receipt” on November 4th and 5th.  Sounds simple enough.  The car wash proprietor also happens to be an Obama supporter.  Nothing wrong there either.  But Election Journal raises some interesting questions.

The proprietor is offering free washes on November 4th and 5th to voters producing a voter receipt. While the car wash seems to have endorsed a candidate, the advertisement does not expressly require support in order to redeem ones free wash. That said, you have to wonder if the offer would be honored if a car bared the opponents bumper sticker.

Either way, it seems doubtful that this is legal:

I can’t see anything specifically wrong here, but it could bare watching should anyone be turned away just because of who they support in the general election.