You shouldn't have any problems.
It's a shame you have to pay for an adult Dining Plan (and you do pay indirectly, even when it's free dining, because you are usually not getting a discount on your hotel room). This is one of the times when paying out of pocket for meals could be beneficial. Under the current Dining Plan pricing most folks end up being very close to "break-even," and it can be a challenge to come away with significant savings.